Igtdym 

Common abbreviation for "im going to do your mother"
most often used in chat rooms or while being pwnd in CT

Ted was just raped by the terrorists so he replied "IGTDYM!!11!!11"

Igtdym by shepwnzme July 23, 2008

IGTKYMFA

I'm Going To Kick Your Mother Fucking Ass

Jared, IGTKYMFA! (and Jared cowers under the foosball table)

IGTKYMFA by Gally October 27, 2005

IGTDY 

if you’re feeling secretive and want to absolutely deck your friend use the phrase IGTDY which literally means i’m going to demolish/deck you

if you don’t shut up right now igtdy

IGTDY by sillygoob February 23, 2022