Related Clues:

• 'That's hysterical!'
• Yuk
• Sounds of laughter
• Hardy follower?
• Laugh track refrain
• That's a laugh
• Comedy club sound
• Sound of cracking up?
• 'Very funny ... not!'
• Pun response
• Response to sarcasm
• Small laugh
• Music to a comic's ears
• ''Funny ___ or funny peculiar?''
• 'That's rich'