Definition from Wiktionary, the free dictionary
to act out (phrasal verb)
- (idiomatic) To go through the process of a scene from a play, a charade or a pointless exercise.
- Despite already being aware, he will act out the pretence of a surprise.
- (idiomatic) To express one's feelings through disruptive actions.
- I know you're angry, but you can't act out and break dishes like that.
to go through the process of a scene from a play