a type of dance generally linked to metalheads and goths. People are generally found doing this at metal/rock concerts. It consists of shaking the head violently in an upwards and downwards motion so that your hair flys around and goes in everyones mouth around you. People normally end up with a headache after doing this.
jesus, that guy is head banging so hard his head might fall off
When you wear a largeheadband around your waist and her neck as she is giving you oral. The elastic band acts as a rubber band effect, so when she pulls back it forces her back down. Possibly causing her to deep throat.
"So what did you do last night?"
"oh, my girlfriend and I were Head-Banding. She told me she has a sore throat today"
"Sounds like a good time"