A woman you know nothing will ever happen with; for whatever reason.
Bruce: Holy fuck Jimmy, did you just say that blonde walk by? You should go for her.
Jimmy: Yeah man, but I ain't interested.
Bruce: Oh come on, don't be a pussy, go for it.
Jimmy: No real dawg, I won't be back in the city for a year, not tryin' to spend my last day chasin' a neverting.
An adjective to describe someone who provides you with desired needs but means nothing to you. Very similar to sugar daddy/momma but is more versatile and can be used directed toward any number of things including friends with benefits.