One who dances by violently shaking the head in time to the music. / (by extension) One who enjoys heavy metal (rock) music, to which this sort of dance is usually performed. / A mad or eccentric person.

plural of headbanger

present participle of headbang

A type of dance associated with hard rock or heavy metal music, in which the head is shaken violently in time with music

To engage in headbanging, the vigorous movement of the head in time to music

Third-person singular simple present indicative form of headbang

simple past tense and past participle of headbang