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!"
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"
To upload a drug into ones anal cavity, such as ecstasy. In that case it would be called a butt roll
Can I watch you buff that X up your ass, dude?
Giving head,or also used when some one is bothering you and u wanna tell them to stop
Yeah man, she gave me the buffs last nite and it was bomb and she had a donk
Jose stop buffin nigga, im busy.
A protecticve wax coat also used to enhance translucentsy on a car or a marbal floor
I just buffed the floor
To have sex. To engage in sexual acts. To have sex with someone other than your significant other.
All I know is that she better let me buff.
Yea, I buffed that last week.
It's going to be a straight buff session
How much dya pay for that?
Jus three buff
The best picture in the world is called 'Buffing Buff in the Buff.'