Related Clues:

• Joke that causes a belly laugh
• Knee-slapper
• Rib-tickler
• One very funny joke
• Real hoot
• Joke that causes a belly laugh, e.g.
• Thigh-slapper
• Very funny joke (Sl.)
• Funny joke, in old slang
• Hilarious joke
• Riotous joke
• Funny, funny joke
• Hilarious joke, in slang
• Quite a wisecrack