尽欢而散

Explanation: Merry before we were to leave. Multi-fingered party, feast or pleasure. 　　Source: Five WANG Ding Bao "Don Picks of words" Volume do not sign wine, thoroughly enjoyed themselves and unfocused. " 　　Examples: He also ate a large glass ceiling, only ~. (Qing, Culture and Sport "Heroic Biography" thirty-back)