憂さを晴らす
to dispel the gloom―relieve the gloom―dissipate the melancholy―relieve the tedium―beguile the tedium
to wreak one's grudge―glut one's ire―revenge oneself―be revenged―settle accounts with one―get even with one―get square with one―quit scores with one
a form of relaxation used to invigorate
to revenge oneself―wreak one's grudge―glut one's ire―settle accounts with one―square accounts with one―quit scores with one―get even with one―get square with one