headbanging

== English == === Etymology === From head +‎ banging. === Noun === headbanging (uncountable) A type of dance associated with hard rock or heavy metal music, in which the head is shaken violently in time with music. (psychology, autism) The motion of striking one's head against a surface, a common stereotypy. ==== See also ==== headbanging on Wikipedia.Wikipedia === Verb === headbanging present participle and gerund of headbang === Adjective === headbanging (not comparable) Extremely frustrating.