Slang: Blow off steam

"Rob screams and yells a lot. He should find some other way to blow off steam."

Definition: To release stress or anger.
Example: 1) Rob screams and yells a lot. He should find some other way to blow off steam.

2) Playing sports after school helps students blow off steam.
Etymology: The idea is that anger and stress can build up inside a person and needs to be released, like an engine releasing pressurized steam.

Synonyms: vent