give vent to something
give (full) vent to (something)
To passionately express one's negative emotion, such as anger, frustration, etc. Once we left the office, Sally gave vent to her anger about how promotions are unfairly awarded in our department. I work in customer service, so I'm used to people giving full vent to their frustration.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
give (full) ˈvent to something(informal) express a strong negative feeling freely and forcefully: I tried to stop myself giving full vent to my anger.
Farlex Partner Idioms Dictionary © Farlex 2017