have a ball
玩得很高兴，非常享受某种活动
口语·表达玩得开心
英文释义
to have a great time, to thoroughly enjoy oneself
例句
We went to the amusement park and had a ball riding all the roller coasters.
典故来源
源自19世纪美国的舞会（ball），参加舞会意味着尽情欢乐，后来泛指玩得尽兴。