that cute blonde girl at case who wears short skirts and rides a pink scooter to class
"hey scooter girl! where's your scooter?"
A girl that you have fun with (usually in a sexual sense) that you would never be caught with in public.
--derived from a guy riding a scooter, which is perceived as something that is very fun to ride but your friends will make fun of you when they see you!!!!
I'm gonna call my scooter girl tonight.
A below average girl you DO NOT want to be seen with.
Matt: "Hey, I saw you with that (Scooter girl) last night.. What the hell were you doing with that?"
Friend: "Ya about that.. I knew i should of picked her up with my car, no one would of ever seen me with her!"
aka (Scooter Girl) because everyone can see.