his ‧ tri ‧ on ‧ ics /ˌhɪstriˈɒnɪks $ -ˈɑːn-/ BrE AmE noun [plural]
[ Date: 1600-1700 ; Language: Late Latin ; Origin: histrionicus , from histrio 'actor' ]
very loud and emotional behaviour that is intended to get sympathy and attention – used to show disapproval
—histrionic adjective