单词knee-slapper
网络: 实在好笑的笑话；一个能让人拍大腿的笑话；使人笑得拍大腿的笑话
I was disappointed with that new comedian on TV last night. He talked for 10 minutes and told only one knee-slapper during all that time.
我对昨晚电视上那个新的喜剧演员很失望。他讲了10分钟，笑点只有一处。