vent on

vent something (up)on someone or something

to release one's emotional tension on someone or something. (Upon is formal and less commonly used than on.) Henry vented his anger on Carl. It's no use to vent your hatred on a door. Kicking it won't help.
See also: on, vent

vent on

v.
To release some strong emotion by taking action against someone or something: The frustrated travelers vented their anger on the employees of the airline.
See also: on, vent