knee-slapper

My colleague opened the meeting with a knee-slapper, and even the boss cracked a smile.

我同事用一个大笑话开始了会议，连老板都露出了笑容。

用法提示：knee-slapper 为名词，作介词 with 的宾语，指非常好笑的笑话。

That knee-slapper she shared at lunch was so funny that I had to save it in my notes.

她午饭时分享的那个大笑话太好玩了，我不得不把它存进笔记里。

用法提示：knee-slapper 作句子主语，表示那则笑话令人捧腹。

His set is full of knee-slappers, so you’ll definitely laugh more than once.

他的节目里全是令人捧腹的笑话，你肯定会不止笑一次。

用法提示：knee-slappers 是复数形式，表示多个非常好笑的笑话。