An acronym for "I fucked your mom". Coined by James Ransone as Eddie Kaspbrak in IT Chapter Two, meaning " I love you".
"Richie..."
"What?"
"I fucked your mom (ifym)"
by Ceiling fan September 13, 2019
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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
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Eric: I like your mom.
Jack: How the fuck do you know my mom.
Eric: Ifym last night.
by PunanHunter47 January 18, 2013
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