An acronym for I Did Your Mom.
Bob: Hey man, IDYM.
Joe: What does that mean?
Bob: I Did Your Mom!
Joe: Hahaha, you owned me :(
Bob: Yes, yes I did.
by jrcdude November 02, 2007
i did your mom Meaning you did somebody's mom.....or did you? Lol.
Just because idym doesn't mean you have to get mad.
by andydawiz November 16, 2007
An acronym meaning "I did your mom" used in many countries including Asia, America, and sometimes Canada (who knows why)
Hey IDYM last night
Huh?....Oh what an ass
:)
by DamnWhoDisPollo December 11, 2011
An acronym for "I Drink Your Milkshake." Normally used to denote that someone has been "owned" or has had their thunder stolen.
Dale the Dinglish Speaking Derelict: Look at how long my Dinglish drawl is.

Long Dong Assler: Dale, IDYM. I would have to fold mine in half to be the same length as yours, you crotch goblin.
by endub1 August 06, 2008

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