vent your spleen

vent (one's) spleen

To voice one's anger. Mom's been venting her spleen to me for an hour already. Apparently, Aunt Marie has wronged her yet again.
See also: spleen, vent

vent your spleen

If you vent your spleen, you express your anger about something. He took up the attack, venting his spleen against the government for a full hour.
See also: spleen, vent

vent your spleen

give free expression to your anger or displeasure.
2003 Guardian Woodgate 's clumsy challenge on the striker was not contested, though the visitors wasted little time in venting spleen at both the culpable Danish midfielder and, erroneously, the young pretender.
See also: spleen, vent

vent your ˈspleen

(literary) express your anger in speech or writing: He vented his spleen on the assembled crowd.In the past, people believed that the spleen (= a small organ near the stomach that controls the quality of the blood cells) was responsible for making someone feel sad or bad-tempered. From this, it came to mean a person’s anger.
See also: spleen, vent