MMF 

Meeting Muthah Fucka

Person always in meetings.

MMF by Johnny Rotten February 17, 2004

MMF 

A threesome that is male male female.

See also: MMM , FFM , and FFF

One(F): Yo Two, you down to MMF with Three?
Two(M): Only if Three is down for it.
Three(M): I'm in!
*then came the straight woman-who-is-with-Two-but-is-attracted-to-Three's dream threesome

MMF by Gimmily January 17, 2023

mmf 

a shorten version of the word "MO", which is a shortened version of the phrase "MO-FO", which is also shortened for the term Mother Fucker.
Basically it's a quick and easy way to call someone a mother fucker without having to use all those syllables.

"You are such an MMF!"

Jason: Hey guys! wow you look like crap today, well i gotta run BYE!
Todd: What is that guy's problem?
Gilroy: I don't know dude, i guess he is just an mmf

mmf by Kayla Grace... January 17, 2008

MMF 

MultiMedia Fusion - a very powerful game and application creation tool. This is a very common word between "clickers", together with TGF and KnP.

MMF caused crash in EdRt.exe

MMF by Imp June 22, 2004

mmf 

mmf

mmf

mmf by Krkič January 13, 2020

MMF 

Main Mother Fucker
This could be used to describe a boss, or other leader-like figure in a workplace or otherwise.

"that guy's the MMF around here, you dont wanna screw with him"

MMF by muka shaka paka July 8, 2006

mmf 

How have you been?
Let us phone tonight!

mmf

mmf by Krkič April 25, 2020