The crowd killer hit many people, after it spun out leaving a car meet.
by JoshJLMG November 17, 2017
A retard who goes to concerts with the intention of assaulting people
Person A: I went to a concert with John and he tried to start a fight with a guy twice his size

Person B: He’s one of those dumbass “crowd killers”, huh?
by Næþālîc March 18, 2021