1 definition by filllx

Top Definition
MFF
Mother Fucking Friday
Other forms: MFM - Mother Fucking Monday, MFT - Mother Fucking Thursday

Used to emphesize that it's a good friday, or something great is going to be happening.
WOOT! It's MFF!!! I'm getting a 1/2 pound of weed tonight!!!
by filllx November 03, 2007
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