vent 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 one's spleen

Fig. to get rid of one's feelings of anger caused by someone or something by attacking someone or something else. Jack vented his spleen at his wife whenever things went badly at work. Peter vented his spleen on his car by kicking it when it broke down.See also: spleen, vent