In a group of friends or "clique", the person who is the leader. Can force other people in the clique (a.k.a the slave driver's bitches) to do their bidding simply by using their popularity as a weapon. Rules over the accepting bitch and the independent bitch.
1. "Adam is a total slave driver", Gabi exclaimed. He makes John and Ben do whatever he wants. "Yeah", Sam agreed. "They're so his bitches".