A person who participates in ganging up on someone by outnumbering them by overwhelming numbers. They choose to do this, because they are afraid to fight one-on-one, for fear the outcome is not guaranteed to be in their favor.
Trevor: "Yo, did you hear Johnny got jumped last night"?
Freddy: " No, who got em"?
Trevor: "judging by the spankin he got, it had to be a dirty duskian"!
Freddy: "That wasn't kosher, at all"!