憂さ晴らし

憂さ　－　うさ　- gloom, depression
憂さ晴らし　－　うさばらし　- a diversion, a recreation, an amusement

The kanji is 憂 which means to be anxious.

憂 YUU ure・eru 　ure・i 　u・i 　u・ki　= be anxious

晴らす - harasu = to clear

These diverting words came up while drinking at Hawkwind...