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"
Bill: "Hey, Ted. Look at that fat nasty dude over there."
Ted: "Yeah, that guy is BUFF"
by jonsdedbro January 26, 2010

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.
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 July 18, 2007

by LatinaKaterina November 16, 2004

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 14, 2013

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.
by That_guy69 July 16, 2019

Buff(n.)-Buff is the noun used only for female excrement. Buff means female excrement,female shit.or if any girl is shittin then we can use it as verb.like,"Ol,look at that girl she's buffing"!
Buff(v.)-Buff means to shit.(only for female)
Buff(v.)-Buff means to shit.(only for female)
by Ra Skull May 20, 2011
