1. Slang. the buttocks
2. the rear pelvic area of the human body.
He's so gay he likes it in the bu-tay-tay.

I'm not takin' no pa-nay-nay in my bu-tay-tay... Sha-nay-nay!!!

Yo' breff smells like bu-tay-tay.
by antjcar86 December 2, 2007
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