[hed-bang-er] /ˈhɛdˌbæŋ ər/
a heavy-metal rock fan
a crazy or stupid person
“devotee of heavy metal music,” 1984, from head (n.) + agent noun from bang (v.).
A devotee of heavy metal rock music, a style dating from the mid-1960s: Hip headbangers, it seems, want nothing more than to see Bon Jovi fall off the face of the earth/ The show’s naked emotionality feels as false and forced as an arena full of headbangers holding their lighters aloft during a power ballad
[1970s+; fr the frenetic reactions of such persons to the music, including actual banging of the head]
[hed-bawrd, -bohrd] /ˈhɛdˌbɔrd, -ˌboʊrd/ noun 1. a forming the of anything, especially of a bed. /ˈhɛdˌbɔːd/ noun 1. a vertical board or terminal at the head of a bed
[hed-boks] /ˈhɛdˌbɒks/ noun 1. (in a papermaking machine) the container in which cleaned pulp is collected for uniform distribution across the wire. 2. (def 2).
verb (transitive) 1. to deliberately strike (someone) with the head noun 2. an act or an instance of deliberately striking someone with the head
/ˈhɛdˌkeɪs/ noun 1. (informal) an insane person noun a mentally unstable person who acts irrationally or foolishly; an eccentric person Usage Note informal noun An insane or very eccentric person; nut: dedication to a cause that marked them as fanatics of a sort, the wealthy headcases, and professional haters (1970s+)