histrionics UK /hɪstɹiˈɒnɪks/US /hɪstɹiˈɑnɪks/ noun[plural only]1 •Exaggerated, overemotional behaviour, especially when calculated to elicit a response; melodramatics.Dexter's vocals are competent enough: his timbre is thin and eternally teenaged, but he can go apeshit on the hiccupy histrionics like no one's business. — 1999