Related Clues:

• 'Very funny!'
• A few laughs
• Comic's favorite sound
• Sound of breaking up?
• E-mail guffaw
• 'Good one!'
• Laugh sound
• 'That makes sense'
• 'That's clear'
• That's a laugh!
• 'But of course!'
• Response to a joke
• Cyberspace chuckle
• Response to a gag
• Chatroom chuckle