ISTG

ISTG is short for “I Swear Too God”

Rick: ISTG if Bill isn’t hear soon I’ll hack his roblox account

by ShitCuntfromStraya December 30, 2018

Istgifcmao

I Swear To God Imma Cry My Ass Off

Jesus Christ, ISTGIFCMAO if Aylin doesn't tell me who this bitch is!!! -Alyssa

by You're the gay one, not me April 21, 2019

Istg

I swear to god

Bro istg if you don’t stop hitting me I’ll knock you u out.

by 4oarh November 2, 2020

istg

I swear to god.

Jim : I ate your leftovers in the fridge 😛
Chloe: Istg if you did ill kill you!

by barbz 😍😛😋 February 1, 2021

istg

i swear to god i a shorter way

istg if you dont get down from there

or
you are so annoying istg

by 2xsugacube February 5, 2021

istgommyggslabb

I swear to god on my mama you gonna get slapped like a bitch boy.

bro, istgommyggslabb

by Sorakur March 27, 2021

Istg

that means "I should trust Garry"

John: you’re so right istg

Paula: what does istg mean?
John:I means "i should trust garry"

by flower garden July 6, 2021