relieve (one's) feelings
To do or say something as a means of venting or coping with one's feelings, especially anger or frustration. You may feel compelled to relieve your feelings of frustration by spanking your toddler, but it won't make you feel better, and it will teach them that violence is an acceptable solution to problems. Whenever anxiety takes hold of me, I go out for a walk along the canal to relieve my feelings.
relieve your feelings
use strong language or vigorous behaviour when annoyed.