look up any word, like fleek:
 
1.
i fucked your mom
steph: what you do last night?
me: well first ifym, then i dropped her back on the corner to make my money.
by GFYS August 14, 2006
 
2.
I Fist Your Mom
Eric: I like your mom.
Jack: How the fuck do you know my mom.
Eric: Ifym last night.
by PunanHunter47 January 18, 2013