Headbanging, a term often associated with heavy metal music, describes the act of vigorously shaking one's head back and forth in time with the music. However, if you're looking for synonyms to describe this action, there are a number of options to choose from. Some may prefer to use the term "moshing", which refers to the more violent and aggressive movements often seen at metal concerts. Other options might include "thrashing", "crashing", "whipping", or "banging". Any of these terms could be used to describe the intense, rhythmic movements that accompany heavy music, and each conveys a slightly different feel or connotation.