A character from The Playa Hata's Ball or The Playa Hatin' time travelers. One whose hatin is only good enough to be secondary to Silky Johnson.
Silky: Excuse me why I go put some water in Buck Nasty's momma's dish.

Ice T: Buck Nasty is nominated for getting his best friend's girlfriend pregnant, then tricking his best friend into raising the little motherfucker.

Buck Nasty: Man, you should take that cane, and beat whoever made that suit to death.
by Rich F. December 05, 2006
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To perform a sexual act without protection; i.e. coitus without a condom, or cunnilingus without a dental dam.
"Don't have judgement, Roast Beef! You know you don't drive a woman crazy enough to buck nasty!"
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A girl that is so ugly that you would not pay a buck to get with her nasty ass
Man that girl you hooked up with last night was buck nasty
by tbiggs December 05, 2007
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1.)To Have dirty, filthy, pig like, animal sex.
Me and Suzzy rotten crotch got buck nasty last night.
by Kkal July 01, 2006
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A girl that is so ugly that you would not pay a buck to get with her nasty ass
Man that girl you hooked up with last night was buck nasty
by tbiggs December 05, 2007
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