I think it refers to the girl doing everything she could possibly do to hurt the guy, about whom this song is sung. She keeps shooting until there are no more bullets in the gun, so the hammer of the gun simply goes 'click'. The guy feels asif he hasn't been shot once, but about 6 (or more) times. Basicly, she hurt him in a lot of ways, imo.
I think it refers to the girl doing everything she could possibly do to hurt the guy, about whom this song is sung. She keeps shooting until there are no more bullets in the gun, so the hammer of the gun simply goes 'click'. The guy feels asif he hasn't been shot once, but about 6 (or more) times. Basicly, she hurt him in a lot of ways, imo.