Nickname for the US Air Force B-52 strategic bomber, referred to as a "Big Ugly Fat Fellow" or "Big Ugly Fat Fucker". Considered a term of endearment when used by aviation types.
The NVA types in Hanoi were a bunch of cocky bastards until Linebacker II (major Vietnam War bomber campaign in December 1972). The sight of all those BUFFs rattling their windows on a daily basis was enough to tighten their sphincters good.
by Speedstan May 20, 2008
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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"
by jonsdedbro January 26, 2010
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Extremely sexy and good looking. Good facial features, nice clothes and nice body
that boy is propa buff!!
by LatinaKaterina November 16, 2004
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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.
by bignose June 18, 2007
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Buff refers to as girl
That’s my buff
by A guy that is bored and black December 18, 2021
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Someone to text to during commercial breaks, while you're pooping, when you're waiting on a friend to arrive or even when you're at the doctors office.
Hey man, I'm waiting on Stranger Things to come back, I need a five minute buff.
by That_guy69 July 16, 2019
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The person you want around when you are not getting along with your spouse. They are a good buffer, when the two of you are not talking. This is helpful when you are not able to talk with your spouse at the time. The buff gives you a break and may be able to smooth things over.
by One Who Needs Buff November 15, 2013
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