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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when someone is hot, fit, generally good looking.
DAMN, devon is buff!!!
by SeanLovesDevon April 15, 2006

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An aesthetically pleasing object or person
Your car is buff
by Treatz June 06, 2003

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B.U.F.F
Big. Ugly. Fat. Fellow.

It is a term used by the USA military given to planes no longer in commission. These planes are used for scrape, going to be scraped,
being parted out, or in the process of being parted out.
Military Officer: Look at that buff, there is nothing left in the plane.
Recruit: Better take it to the scrape yard.
by Hair Cow Pie September 14, 2013

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a muffless muff
A Brazilian waxjob made her muff a buff.
by Moby Doug April 07, 2009

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Big
ugly
fat
fucker
Apparently no one knows the real meaning of buff.
by sammy1115 June 13, 2015

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"Buff" means you're over 160+lbs who is cut and actually has muscle that shows. If you are under that weight and only have a six pack you are not qualified to be called buff. In fact you are skinny. So delete those pics of you lifting up your shirt.
Damn Jake is getting buff! Did you see his traps and triceps?! You can see them more defined! Unlike Esteban who is just skinny.
by iWearCutoffs December 27, 2014

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The Urban Dictionary T-Shirt

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