Related Clues:

• 'That's a riot!'
• Representation of laughter
• 'You're a riot'
• "You're a riot"
• "Verrrry funny"
• 'Verrrry funny'
• LOL
• Gag reaction?
• "Funny"
• 'Yeah, that's funny'
• "Yeah, that's funny"
• Funny (or sarcastic) joke response
• "That's a good one!"
• What might follow a crack
• ''LOL,'' verbalized