acting out acting out /ˈæktɪŋ aʊt/

noun

1. (psychiatry) the display of previously inhibited emotions (often in actions rather than words); considered to be healthy and therapeutic  ( acting out )
   (psychiatry) the display of previously inhibited emotions (often in actions rather than words); considered to be healthy and therapeutic
   
2. A (usually irritating) impulsive and uncontrollable outburst by a problem child or a neurotic adult  ( acting out )
   a (usually irritating) impulsive and uncontrollable outburst by a problem child or a neurotic adult