backseat rider

A girl who pretends to be crunk just for the excuse to hook up with a guy in his car. These hookups tend to be a one time thing, and they never conversate again because of strange things the girl and guy did that would be embarrassing to discus. Usually this is a mentality of a group of friends rather than a single person.

Andy: So I left with her after the party and we just hung out.

Sarah: Yeahhhh, don't lie, everybody knows that she is a backseat rider.

10👍 4👎