Noun: a girl who sleeps around with every guy she meets. She has a new boyfriend every week and is known to carry diseases. If you see or hear of any Brooke Austins, run. A common trait of Brook Austins is snaggle tooth where the front teeth are bent inward and beyond noticeable. They tend to be very loose to the point of fisting and strip at clubs while giving lap dances to multiple men on stage. Don't be a Brooke Austin.
Guy 1: "who's that hoe with the snaggle tooth dancing on stage?"
Guy 2: "Shit, that's a Brooke Austin! Let's get the fuck out of here before we get Hep."