A black womens loose vagina. The outer lips, or the Lavia Majora
Get yo nasty ol roast beef off my doggy head.

Yo coochie look like roast beef!

Get yo quail, roast beef, sickle celled roast beef away from my iced tea!
by SWID March 6, 2003
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When vagina gets fucked so many times that the inner lips begin hanging outside of the vagina itself. Called Roast Beef because the small thin flaps of skin look similar to the shit you see hanging from the bun of a roast beef sammich from Arby's
John: I was gonna fuck this bitch last night, but when she got her pants off, she has the most wicked Roast Beef I've ever seen!

Tom: Fuck man.
by TehCho March 3, 2008
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a black chicks vaginal lips

The spreading of the vaginal lips when a woman gives birth and the baby's head is coming out.
I guess Joe brought home more than the deli- look at the roast beef on that chick!
by Sabertooth nigga December 1, 2004
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A vagina in which the inner lips hang out farther than the outer lips. This shit is straight NASTY
His ex has some roast beef
by - March 6, 2005
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A vagina that has been used to point of causing the labia to appear like dangling roast beef.
So I took this broad home, and when I finally got downstairs, she had some nasty roast beef action goin' on.
by Alan Michael April 10, 2008
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