a knee-slapper

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A hilarious joke, especially one that evokes loud and prolonged laughter. My uncle told me a real knee-slapper the other day! Do you want to hear it?

Name	Pronounced	Usage
Cassidy	['kæsidi]
Miro	-	Slovene, Croatian
GÜNay	-	Turkish, Azerbaijani
Thandiwe	-	Southern African, Xhosa
Dorottya	-	Hungarian
Tyge	-	Danish