ISTG stands for: I Swear To God. It is commonly used as an exclamation or interjection. Correct: ISTG Correct: istg Incorrect: iSTG Usage Use of the abbreviation can be found in the following places. Similar to “I Swear To Fucking God” istfg, in that it is an escalation of the original term “I Swear To God” istg. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. This phrase is typically employed to express surprise, disbelief or concern over a given situation. It is a commonly used slang expression used to emphasize that someone is telling the truth, or to add emphasis to a statement. This is a casual phrase that many people use both online and in real life (imagine someone exclaiming “I swear to God!” when they’re frustrated or emphasizing a point). It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious. This is a common acronym that is used online, typically in text-based communication. What does B) mean? Back when emojis weren’t a thing, ‘emoticons’ were used to add more emotions to the text. This phrase can be used to swear truthfully without having to use a more serious swear word, such as the word "God". This is also very similar to. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. It can be written in both lowercase “istg” and capital “ISTG” letters. OFC meaning: of course. 1 definitions of ISTG. Use Cases & Examples. This can be seen in phrases like: “ISTG, I’m always here for you” or “ISTG, I’ll never forget what you did for me”. LFG meaning: let's freaking go. You might learn your child is using this slang term by chance when a text pops up on the phone screen. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on. It is commonly employed in informal chats, videos, and posts to show seriousness and truthfulness. TLDR meaning: too long; didn't read. This phrase has a couple of variants, S2G and ISTG, and is frequently used in texting or on social media. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. ONB is an abbreviation commonly used in texting, which stands for “Oh No Baby”. OFC meaning: of course. “ISTG” stands for “I swear to God,” and it’s commonly used in texting to express the seriousness of a situation or to assure someone that you’re not joking when. STFU is an acronym that means "shut the fuck up. It can be used as an exclamation, where users are expressing disbelief or shock. One of the known acronyms is “ISTG” or “istg”. ISTG Unveiled: Introduction to the Slang. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness. However, as with many other abbreviations meaning "I love you," it should not. ” This abbreviation is commonly used in informal conversations on various digital. It’s a direct and sometimes blunt way of communicating that the information just shared doesn’t impress, affect, or matter to the person asking “so what. The origin of ‘ISTG’ can be traced back to the phrase “I swear to God,” which. While it may seem like a phrase that you would use in casual conversation, it can be so much more than that. What does STG mean?U Jelly is often used to goad someone online or in-person because you possess an article that they do not have, or because you have attained some kind of gamer achievement or minor online fame. Start the day smarter. ISTJ types like to have clear goals and realistic deadlines, and to work with factual data to solve problems and monitor progress. " ISTG is used to add emphasis to a statement (usually a promise, threat,. Here’s our round-up of the latest Roblox slang. ISTG stands for "I Swear to God. ” Origin of ISTG. ISTG is an acronym that is short for “I swear to God”. "I swear to God" isn't just texting slang – it's used in everyday conversations to emphasize the truth at hand. It is commonly. It's used express emotional sincerity or to seem intimidating. ISTG is often used in informal conversations, texting, and on social media platforms. The phrase “so what” is often used to express indifference or dismissiveness about the topic at hand. This phrase is used to emphasize the truth of a statement or assertion. This should not be used in any formal setting, no matter how informal it may seem, via social media or text. The Meaning of ISTG in Text. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. . The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. STFG stands for Super Teacher Friends Group. What does istg mean in text. IYKYK meaning: if you know, you know. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. It is commonly used in text messaging to express the seriousness of a situation or to assure that a statement is not a joke. Meaning. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. What does OTP mean in texting? “OTP” means “one true pair/pairing,” according to Merriam-Webster. Istfg Meaning Is: Istfg stands for “I Swear to Fucking God. ISTG Meaning= Threat Use Cases & Examples. It’s similar to the term ‘ONG. By using “ISTG,” individuals can emphasize the sincerity or truthfulness of their statements, especially when sharing surprising facts or. As in, I swear that actually happened. When someone doubts something you said, using ISTG is a way to make a solemn oath that most people respect and are more likely to believe. What Does ISTG Mean? Introduction. U Jelly has become a very popular expression, and because of its viral spreading nature, it has achieved meme status. ISTG=Make a PromiseWhat Is ISTG Meaning in SlangIstg Slang Usage (Examples and Use Cases)ISTG Meaning on TikTokISTG Meaning SnapchatFAQs on ISTG Meaning1. ISTG. Origin of ISTG. Usually, students or the young generation use this acronym. HMU meaning: hit. Pinky promise. 1 definitions of ISTG. It’s also like STG. ISTG is an acronym that stands for “I Swear To God”. The phrase originated as a method for people to express a greater level of certainty about a statement they’re making in a conversation. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. Capitalization The slang term and abbreviation “ISTG” is typically spelled in ALL CAPS or all lowercase letters. ISTG Meaning What Does “ISTG” Stand For? If you’ve ever seen “ISTG” in a text message or on social media, you might be wondering what it means. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages,. ISTG is an acronym used for “I Swear To God. Usually, students or the young generation use this acronym. ISTG is commonly used in text messages and other social media conversations as a way to emphasize the truth or sincerity of a statement. What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. " ISTG is used to add emphasis to a statement (usually a promise, threat, excuse or apology), or as an interjection which expresses surprise, skepticism or exasperation (similar to OMG ("Oh My God!") ). This phrase is often used to express frustration or exasperation with a situation or to emphasize the sincerity of a statement. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious context. They are there for each other on the good days and the bad days. IYKYK meaning: if you know, you know. ISTG Meaning. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. Let’s talk about the other meanings of this common abbreviation and find out what it means for different people in different contexts. Essentially, ISTG is a shortcut way of saying "I. HMU meaning: hit me up. Looking for online definition of ISTG or what ISTG stands for? ISTG is listed in the World's most authoritative dictionary of abbreviations and acronyms ISTG - What does ISTG stand for?Definition of the term. It stands for “I swear to God. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. ISTG stands for I Swear To God. This. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. ISTFG means “I Swear To Fing God,” a phrase used to emphasize sincerity or seriousness when making a statement. new search. Going deeper into its meaning, ISTG sounds quite similar to OMG ‘Oh My God!’. Testify. This initialism should be avoided in professional situations or in conversing with someone who is religious. This acronym often highlights the sincerity, seriousness, or exasperation of the person using it. The phrase was later. I Swear to God. 3. The texting term ISTG, which means "I Swear To God," tells people that you really do mean what you're saying. What does LFG ð mean? LFG as “let’s freaking go” has since become widespread in texts among friends as a way to excite or “hype up” one another about a particular event or situation. ISTG is short for "I swear to God. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. ISTG can be used to express extreme seriousness, anger, or surprise, and is usually used outside of serious religious contexts. " People use it in various places on the internet to tell someone to stop talking or as a gut reaction to something offensive or mean-spirited. What Does ISTG Mean In Texting? Snapchat represents a real-time multimedia communication platform that takes a step beyond traditional messaging applications. Expand Your Lexicon: Discover 5+ Similar Words for ISTFG When it comes to texting, understanding similar. In texting lingo, “istg” simply stands for “I Swear To God”. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. 2. Well, fret not – I’m here to help unravel the mystery for you. ISTG and OMG can also be used interchangeably often. STG means different things to different people but its most common meaning is ‘Swear To God’. ISTG Meaning= Honesty or Certainty2. There needs to be a TikTok user manual that includes a glossary because new abbreviations and slang words are constantly being churned out and I, a millennial, cannot keep up. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on social media. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. ” Kids often use this to express frustration or exasperation. new search. ISTG can be used in various contexts and can have different implications depending on the conversation. 查看翻译. In contrast to standard text or audio messaging apps, Snapchat offers the unique ability to share fleeting live video messages that vanish as soon as they are. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. . Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. For example, three sample text messages using the abbreviation ISTFG could be: 1. Throughout the years, a variety of terms have arisen which make it easier to communicate online. "I swear to. Some of these words and acronyms are used on other video games and social media platforms too. Start the day smarter. Specifically, as internet usage is increasing daily, people. Promise. Like, "ISTG, if I get one more. Even though the phrase includes “God,” its meaning and uses aren’t considered religious. Abbreviation of I Swear To Mother Fucking God. ISTFG, if you don’t stop playing your music so loudly, I’m going to lose it. ISTFG means “I Swear To Fing God” and is typically used in informal texting to express frustration or disbelief. What does ISTG mean? ISTG means “I Swear To God”. This phrase is often used on social media while making public posts or in private chats. Usually used after saying something ‘cool’. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ”. ” It is commonly used in text messaging and online chat to emphasize the truth or sincerity of a statement. This expression is most likely something you've heard in ordinary conversation. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. ISTG is an acronym that stands for ‘I Swear To God. Get all the news you need in your inbox each morning. ”. Use Cases & Examples. It can be used to express emotions, surprise, or sudden kind of feelings. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. FYP means For You Page. Specifically, as internet usage is increasing daily,. TLDR meaning: too long; didn't read. ” It is often used to emphasise the truthfulness of a statement or convey the seriousness of a situation. Meaning. Since this is a very casual acronym, avoid using it in. " “ISTG” meaning over text message. Here's what this versatile slang term means and how you can use it in your messages and social media posts. ”. What does ISTFG mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: ISTFG. Social media platforms: Snapchat, Instagram, Twitter, TikTok, and more. The “baby” part of the phrase isn’t a literal reference to a child, and. ISTG is used to express frustration or annoyance at something or to show emphasis on a statement. ”. Do you know what ISTG means in a text message? Watch this video to find out when to use ISTG in a text message and what it means!What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. ILYSM can be used to express profound affection. It can also be an expression of surprise or. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages, social media posts, and online forums. This expression is used to emphasize the truthfulness or seriousness of a statement. 2006)Texting with friends is the best way to use this term. I swear to God. Person1: I'm so exhausted. It is used to express frustration, anger, or disbelief. ”. " The abbreviation ILYSM is used with the meaning "I Love You So Much" as an expression of affection. Pushin P is a popular phrase in the Bay Area and Texas that was popularized by Atlanta rapper Gunna. ”. TikTok lingo is hard to keep up with. A very dramatic phrase to be used only in exceptional circumstances. Simply put, “ISTG” stands for “ I swear to God . B) used to be the symbol of a person wearing sunglasses with a smile on his face. This is also very similar to. I swear to fucking god. ”. The ISTG definition includes a short acronym for a phrase that reads as ‘I Swear To God’. The term is primarily used to emphasize a point you’re making and can reiterate anger or annoyance. ISTG is simply an acronym that means I swear to God. ETA meaning: estimated time of arrival. It can also be used as an expression of sincerity, such as when a user is making a promise or expressing their. It can be a powerful tool for self-motivation and encouragement. It could be used to show how excited they are or to express. Chronic Osteomyelitis Pathology Degree Embed Share an image of ISTFG » Click to view: Hearing impaired tip:. Every TikTok user's FYP. You can use it to show your deep frustration, attest to the truth of something, or underline your beliefs. Get all the news you need in your inbox each morning. ISTFG. "I swear to. Today, I'll walk you through what ISTG means in text and other text. ISTG Meaning= ThreatUse Cases & Examples. ”. It is typically used to show appreciation of an act of kindness by a loved one. It’s used to convey a deep sense of seriousness about a situation or to emphasize a point being made. " It is an internet acronym used in online chat to express frustration, surprise, or vehement assertion. ISTG is an abbreviation commonly used in text messaging and online communication, particularly among younger generations. Chronic Obstructive Pulmonary Disease D. A. I swear to fucking god. On the internet, there’s a lot of jargon and abbreviations that often confuse even the most seasoned internet user. ” Definition: Istfg is an acronym for “I swear to f Up. IMO meaning: in my opinion. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. What does ISTG mean in the text? Ans. Also, Check What Does SNM Mean In Texting? What Does ISTG Mean and How Is It Used in Real Context? The use of shortened phrases is a popular way to communicate in text messages and online conversations. The media could not be loaded, either because the server or network failed or because the format is not supported. ISTG is an acronym used in texting, which stands for “I swear to God. 4. In summary, ISTG is an acronym widely used in informal online communication. ”. The abbreviation “ISTG” is a shorthand. Guarantee. I Swear to God. For example, they might say “ISTG this homework sucks. Swear to fucking god. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. ” How to understand Texting Abbreviations!! LOL and LMAO, SMH, FFS… and all the other ISTG Meaning A short video summarzing the most common. What does GM mean in text from a guy?What does df mean in texting? In the realm of texting and digital messaging, “df” usually stands for “da fuq”, a slang and casual form of saying “the fuck”. "I swear to. ” Origin of ISTG. suggest new definition. This is a group of teachers that are more than friends. GTFO can be used to express disbelief or displeasure. I’m beyond shocked. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. It could be used to define the frustration or annoyance you might have towards something or somebody. ILYSM means "I Love You So Much. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). It's not typically used in a religious context. Alternatively, you might say ISTG to show exasperation or frustration at something someone is telling you. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. You will find information about the origin and other possible meanings in all types of information on this acronym, including its. ETA meaning: estimated time of arrival. Jamie Grill / Getty. ’. When used in text conversations, ISTG retains its original meaning of “I swear to God. ISTFG. ISTG has multiple definitions that can be used in various settings. Confused about slang like cap, HB, ATP, and more? We defined some popular TikTok acronyms for you. It represents an empathetic or mildly shocked response to unexpected news or events. So, the next time you see someone using “istg” in a message or post, you’ll know exactly what they mean. It may sound like a new term to some, but this one is very familiar to social media users. ABC – This doesn’t stand for anything. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). It’s an acronym that people use to express the seriousness of a situation or to emphasize that they are not joking. It can be used to convey sincerity, make promises, express annoyance, and more. The term comes from “shipping” within fandom culture. OTP meaning: one true pairing (a couple that fans prefer to all other. ISTG Meaning= Expression of Disbelief4. By swearing to God, you make a sacred oath that most people respect more and therefore, are more. In simple terms, “istg” stands for “I swear to God,” a popular expression used to emphasize the truthfulness or intensity of a statement. Definition of ISTG in Slang/Internet Slang. But while the slang term ISTG is harmless, other teenage slang terms could indicate that your teen is talking about risky behaviors or communicating with potentially dangerous people. Complaint Of Patient Data C. In conclusion, “ISTG” is an acronym that stands for “I swear to God. ISTG is an internet slang initialism that conveys earnestness, annoyance, or surprise. Here’s what this multifaceted slang term means and how you may. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. ABC means asking another player (or telling another player you’re ready) to make an offer, trade or perform a task in Roblox, such as roleplaying in a game. Here's what "ISTG" means and how you can use it in your next text exchange. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. FOMO meaning: the fear of missing out. Prison gang. This is only for close friends. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. If you see someone using ISTG when texting, they’re probably emphasizing how serious they are about something. This initialism should be avoided in professional situations or in conversing with someone who is religious. I swear to f**king god (ISTFG) is an abbreviation used to express exasperation, disbelief, or agreement. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. ISTG stands for “I swear to God. ”. In a different context, “sw” can also mean “someone who. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. Overall, the acronym STG stands for “swear to God. ISTG is an acronym that means I swear to God. 2. I just won the jackpot on the lottery ticket I bought yesterday, ISTFG! 5. "I swear to. ISTG means I swear to God. This initialism should be avoided in professional situations or in conversing with someone who is religious. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ISTFG. ISTFG. It is an acronym used to emphasize a belief in or commitment to the truth of a statement. More violent then just I Swear To GodISTG is an acronym that is short for “I swear to God”. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. ATP meaning: answer the phone. When someone uses ISTG, they are essentially emphasizing. It is a stronger version of the phrase “I swear”. What Does ISTG Mean? ISTG is an acronym that stands for “I Swear to God”. Whenever a TikTok user opens their app, they are directed to their For You Page, which is a stream of videos that TikTok thinks that user will like. ISTFG, I can’t believe she actually said that to me. ISTG. ISTG Meaning. It comes from the courtroom oath that traditionally said, “i swear by almighty god that the evidence i shall give shall be the truth, the whole truth, and nothing but the truth. “I swear to God” is a common phrase that people use to show that they are telling the truth or to express their sincerity. STG: You can swear to god when you are frustrated or in exacerbation. '. Definition of ISTG in Slang/Internet Slang. For example, if someone decides to message you with insulting comments about your hair, then you might reply with "STFU. Simply put,. It is often used in informal conversations, especially when expressing frustration or disbelief. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. What Does Istg Mean? The acronym ISTG stands for “I swear to God. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. Having a parental control app on your child’s phone will give you. The expression “I swear to God” is used for centuries and originates directly from the Old English word “swear” which means swearing. ISTG stands for “I swear to God” in texts and on social media apps. This initialism should be avoided in professional situations or in conversing with someone who is religious. ”. ISTG is simply an acronym that means I swear to God. This abbreviation is typically used to express surprise, confusion, disbelief, or. One of the main uses of ISTG is in text messages or chats, either between friends or in a. ISTG meaning is “I Swear To God” and is one of the most widely used acronyms in the English language. More violent then just I Swear To God Learn what ISTG means in this quick and easy guide! Find out what the abbreviation stands for and how to use it in real life with this simple explanation. Clear Of Patient Diagnosis B. ISTG stands for “I swear to God” and is often used on Snapchat to emphasize a point or express strong emotion. ”. One such popular slang on platforms like Snapchat is ‘ISTG’. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. They prefer to work in traditional organisational environments, with people who take their. It’s also like STG. suggest new definition. The ISTG acronym is commonly used in response to a person who doubts something that you said. What Does ISTG Mean In Texting? ISTG is an acronym used for “I Swear To God. You’ll find it all over the internet, from social media platforms like twitter and instagram to direct messages between friends. It is an expression used to emphasize the truthfulness or sincerity of a statement. ISTG Meaning= Threat3. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. What Does Istg Mean In Text? I swear to God ISTG means “I swear to God. Avoid using this abbreviation in business or professional settings because it is so casual. It’s a widely used acronym in text messaging and online chatting on social networking sites. Sub the Gamer security threat group. Page ContentsWhat Is ISTG Meaning1. Today, I'll walk you through what ISTG means in text. This phrase should only be used in casual conversation. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTG is a slang abbreviation used in online messaging and texting that means 'I swear to God. It can be used to express emotions, surprise, or sudden kind of feelings. Usage: “Oh nice, you finally finished it! Welcome to the club B)” What does BB mean?What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. The acronym ISTG is commonly used in text. – What does istg Mean in Text – ISTG is a popular online abbreviation among today’s youth. Read Also: What does CFS mean on Instagram? Common Uses for ISTG . ”. It is a reference to swearing or commitment to God that is not something to take lightly as it is a risk that the person who is saying it could be punished in the event of lying. ISTG Meaning. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. For example: What does ISTG mean? ISTG is an acronym that means I swear to God. In summary, ISTG is an acronym widely used in informal online communication. "Meaning; ISTG: I Swear to God: ISTG: Immigrant Ships Transcribers Guild: ISTG: Information Storage Technology Group (University of Twente; Netherlands) ISTG: Inter-Site Topology Generator: ISTG: Implicit State Transition Graph: ISTG: Integrated Systems Tech Group (Tampa, FL) ISTG: Innovative Science and Technology Group (est. What does Istg mean in text message . Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. Gunna explained that the ‘P’ stands for ‘player,’ although it can also stand for. Key Takeaways: ‘ISTG’ stands for “I Swear To God” and is commonly used in text messages and online chat. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. How Is ISTG Used? Use Cases & Examples. Annoyance and Assurance Another ISTG How to Use ISTG One of the hottest internet acronyms among today's teenagers is ISTG. It’s often used as an exclamation or a way to emphasize something and can be written in lower or upper case letters. It can often. It's a close relative of the OMG (Oh My God).