What is Headbanging?
1.
swinging your head up and down as hard as you can as if to almost rip it of, while listening to heavy metal music
Yeaaaaaaaaaaaaaaaaaaaa i was headbanging to some metallica, and i got whiplash, it was so fucking hardcore
See
2.
On a roller coaster, when your head bangs into the OTSR's
Ow! Ninja at Six Flags Over Georgia has alot of headbanging!