Big Ugly Fat Fuck. The affectionate nickname pilots gave to the Boeing B-52 Stratofortress. Derived from its sheer size (159 feet long, 185 foot wingspan), and the fact that it is ungainly in appearance on the ramp, due to it's 8 engines and bicycle landing gear.
The B-52 "BUFF" is shown many times in the movie Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb, and flew the world's longest combat sortie in 1991 in support of Operation Desert Storm, launching AGM-86 cruise missiles against high priority Iraqi targets.
by Kiwi90 February 6, 2007
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A term used to express that someone go down on their knees and give head.
"hay, asshole, why don't you go buff it!!"
by Syn1992 March 29, 2009
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Some ting or some one that is good looking
e.g That girl is nuff buff.
e.g Dem crepz are buff
by Rudeness August 8, 2005
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Muscly or fit. When you've been working out and got well defined muscles you're looking buff.
Somebody: "Did you see The Who at Live Aid?"

Somebody else: "Yeah, Daltrey was looking quite buff!"
by Makeety Makondo July 23, 2006
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Apparently no one knows the real meaning of buff.
by sammy1115 June 10, 2015
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When you can truly say the following:
Dude, I almost started a fire today in physics class, 'cause I'm SMOKING HOT!
Dude, could I borrow your sewing machine, 'cause I'm RIPPED!
Dude, I almost got suspended today, 'cause I brought THESE GUNS TO SCHOOL!
by patty-o-pinch-me-youdie March 16, 2003
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