Top Definition
UFB
UnFuckingBelievable. Something so completely off the wall, out of the ordinary, uncommon, or otherwise difficult to comprehend as a fact or part of one's perception of reality, that it defies belief.
Dude, I was driving along minding my own business when a cop pulls me over. He walks up to my car all slow and sanctimonious like they always do and he leans down towards the window and says to me 'Hey, I'll forget about your speeding infraction if you can score me some kind bud.'

OMFG! That is so UFB!
Edwards Reyesによって 2007年09月18日(火)

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UFB
Unfuckingbelievable to indicate it is amazingly something.
A girl with big tits. UFB!
Hoffsterによって 2006年10月05日(木)

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UFB
Un-Fucking Believable.
Girl: Guess whay hunni? :D
Guy: What? :P
Girl: I'm pregnant !! ;D
Guy: UFB ! Really?! O.o
Girl: Yeahh... -.-
Abby-Goes-Rawr-For-You;)によって 2011年06月08日(水)

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UFB
The term for a really large or fat woman who is not attractive. "Ugly Fat Bitch" or UFBWK (which means Ugly Fat Bitch with kids).
"There are too many UFBs hanging out in this club tonight!"
Catdogmanhoによって 2015年10月25日(日)

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UFB
ugly fat b*tch / fat ass
OMG like you are a UFB.
Keep eating fat ass .
Da Bezts_01によって 2009年10月05日(月)

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UFB
Ugly Fucks Better. This is derived from the idea that ugly people are better lays than the pretty ones. The uglies are a good lay because they have to work harder to please you and they know they don't have thier looks to fall back on.
You:"Damn, she's a dog"

Me: "Don't knock it man, UFB!"
KiKKiによって 2006年01月14日(土)

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UFB
Acroynm representing the phrase:
"Ultimate Friend Boy"
He's the guy that tries to befriend every girl in sight without the prospect of sex. The sexuality of the UFB is usually unknwn but more inclined to homosexuality. Synonym includes SGG= "Safe Gay Guy"
Doug sure dresses real nice and has a lot of girl friends. Are you sure he isn't an UFB?
MrBongalprによって 2005年01月07日(金)

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The Urban Dictionary T-Shirt

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