Bully for them, I think they have shown by completely destroying a toilet how tough they are and if they want to change their name I wouldn't like to be the one to tell them they can't. One guy took the Dolman by walking on the pitch, stopping 20 yards away and raising his arms ..
( That's one tough hombre)
A more apt name might be the bell-ends or the coke junkies..
Hope this helps.