vent (someone's) anger

Translations
выпустить (чей-то) гнев
He needed to vent his anger after the argument.
Ему нужно было выпустить свой гнев после ссоры.
Definitions
To express or release someone's feelings of anger or frustration, often by talking about the issues that caused those emotions.
Words
anger

noun
гнев
vent

verb
выпускать