This is a covert (somewhat ironic) acronym. Buff actually stands for "Big Ugly Fat Fuck". Be careful when using this acronym. Most big ugly fat fucks already know they're nasty. So if they hear you call them a buff, they may think you're just being sarcastic and using the nomitive sense and definition of buff (i.e. muscular). This word is most effectively used when identifying a big ugly fat fuck who actually thinks he's got a body to be proud of. See also BIF
Bill: (Casually walking down the street chatting with his friend, Ted. Bill spots some fat nasty down the way.)
Bill: "Hey, Ted. Look at that fat nasty dude over there."
Ted: "Yeah, that guy is BUFF"
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Extremely sexy and good looking. Good facial features, nice clothes and nice body
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If somebody of the opposite sex is attractive (or same sex if you're gay) then you may say that they're buff.
Adrien Brody is buff.
Sacha Baron Cohen is buff, but not as so as Adrien Brody.
Eugene Hutz is buff.
half of Israel's 2007 Eurovision entry are buff.
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A house where men can visit prostitutes.
Tell your mum you have an appointment in a buff so we can get drunk!
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Men who take it up the assbut are very, very, very hot. Buff also has several other meanings.
Adam, you're so buff.
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Pubic hair on a male; the opposite of a muff.
Often referring to an excess of pubic hair.
Often a source of great male pride.
Lisa noticed that Clyde had a huge buff; his pubic hair looked like an afro.
or
"Shave my buff? Never!"
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