1 definition by haha...youknow

Top Definition
Used to describe a woman who loves drama and sleeps with men even if she knows they have STDs. NAB stands for Nasty Ass Bitch. This type of girl is often refered to as a slut, whore, skank, etc. She loves to talk shit about everyone, even people she says are her "best friends." She tends to party too much and cannot handle her alcohol. NAB is usually used to describe any girl who is a two-faced bitch nasty whore.
Have you talked to NAB today?
Who is that?
Oh, that's what we call Amy now cause she's a Nasty Ass Bitch!
by haha...youknow January 19, 2011

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