1. Basically, a kid posing as a bamf who stands behind his/her crew and is afraid to take real action in a fight.
2. Someone who claims they can kick ass, and they chicken out when someone wants to go.
2. Someone who claims they can kick ass, and they chicken out when someone wants to go.
James: I saw Jason behind those punks fighting after-school today. What a whimp.
Rob: I know, such a jack in the back.
Rob: I know, such a jack in the back.
by baddefinintionperson May 27, 2009