istg 

interracial sexually transmitted gonorrhea. It is a disease related to ligma, but more on the side of sugondese. it has interracially spread from wakandans to the bri'ish, and has a lethality rate of 69%. Unfortunately due to this, most patients have died of istg, but not more than ligma. Famous youtuber and streamer ninja died of ligma, but people hope that istg doesn't take a celebrity like ninja fortnite blevins.

istg you're so annoying

istg by uberchuberguy123 November 22, 2021

Istg 

Istg means "I swear to god"

Istg if you ask one more time

Istg by CraftedRLLRL February 25, 2022

Istg 

I swear to god, commonly used for expressing annoyance.

Person 1: OMBB like.. yeahhh we DONT invite you to OUR party~~
Person 2: Istg could you just shut up, you don't even host a party ever in your live.
Person 2: Oh wait i forgot you don't have a live.

Istg by Silkyy May 8, 2022

ISTG 

I swear to god.

Person1: What does ISTG mean?
SmartySkittlethatssus: “I swear to god”

ISTG by S0mEone ; Dad June 1, 2022

Istg 

Istg means " i swear too god "

istg i didnt do ur girl man

Istg by Deizomando September 5, 2023

Istg 

Shortened words for “I swear to god.” Usually not meant literally.

Person 1: We have another math test!
Person 2: Istg I’m going to fail.

Istg by HeadphoneUser February 29, 2024

ISTG 

Acronyms for “ 𝘐 𝘴𝘸𝘦𝘢𝘳 𝘵𝘰 𝘨𝘰𝘥”.

Mostly used in 𝗧𝗲𝘅𝘁 𝘁𝗮𝗹𝗸 (mobile phone text messaging) or online in general. Normally not used in real life daily conversation.

Dick: Did you realise your name backwards is “I moan”?
Naomi: FFS 🍆 say one more thing about my name and ISTG... I'll circumcise you!
Dick: 🍆? Omg you don't even 𝙉𝙖𝙤 𝙢𝙞?

ISTG by UseHerFKNName July 14, 2025