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a person who is known as Fatty Mc Fat Fat
You ate 10 cheeseburgers and a half gallon of ice cream?! Damn, FMFF!
FMFF by anhench December 15, 2007
Related Words
FMFF fmffl FMFFM FMFFUL
acronym for 'fuck me flip flops'
Hey, look at Elisa rockin' those FMFFs!
fmff by nikks October 16, 2008
friend 1:"fmff rn" dude
friend 2: bro what does that even mean
friend 1: fucking my ford focus! duh.
friend 2: I don't think we should be friends anymore.
friend 1: wait were are you going?
fmff by sharkyfromdownunder September 4, 2025
An acronym for F_ck Miami F_ck F_ck Miami. Based off 2 Live Crew's F_ck Martinez, is used by Florida State fans to show their disdain for any of the Hurricanes sports teams, mainly football, especially during rivalry week. Can also be used year-round!

Go Noles!
FSU fan #1: Man, these Thug U fans are asses, I hope we stomp their team in their Rent-A-Stadium to shut them the hell up!!

FSU fan #2: Hell yeah dude, they're pissing me off too! I would like to see their faces when those punks lose! FMFFM!
FMFFM by 850EscambiaNole October 17, 2010
Tim: I raped your mother twenty minutes ago, but we're cool right?

Tim's Wife: No!! I DEMAND A DIVORCE, NOW!!

Tim: FMFFUL

Tim's Wife: WHY ARE YOU 'FMFFUL'ing?
FMFFUL by RyRy-ClemClem May 1, 2010
To be obese and rather saying fuck my life, such as with skinny folk, it means fuck my fat fucking life
Billy the douche "you didnt get twerked on at all?"
Me "yeah i know, fmffl."
fmffl by bobbymongreg December 18, 2011