Old Man Friend Forever. When an older man, is best friends with a younger girl. Man is usually old enough to be her father.
He doesn't perv on me, he's my OMFF.
by Joeactor July 14, 2009
Oh my fucking fuck. A more informal version of omfg.
OMFF! My motherboard burnt!
by _rotor. June 22, 2010
Oh My Fucking Fuck

dUDE: OMFF!!! You fucked yourself!

Dude: So waht? Go Tuck yourself in!
by Samus Aran is Awesome June 25, 2005

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