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1.
MOTHER - I - MIGHT - FUCK.
if you go over to your friends house and their mom is hot, you would say "Damn you mom is a MIMF"
by haybag December 26, 2008
 
2.
Acronym for "Memorize it, motherfucker!".
My name is Chuck Norris. MiMF!
by Tofftoff April 10, 2011