A person who tries to act like a gangster or "gangsta" but is really white. Similar to a wigger, but slightly less offensive.
White guy 1: I'm straight up gangsta, bitch. I'll fuck yo' ass up. Don't fuckin try ta play me.
White guy 2: Dude, you're such a wangsta.
White guy 1: Wha' the fuck you talkin' 'bout nigga?
White guy 2: look it up on Urban Dictionary... *walks away*