Related Clues:

• Giggly sound
• ''Ha ha!'' in chat rooms
• Modern joke response
• Cyber-chortle
• Keyed-in chuckle
• 'Very funny!' in chat rooms
• 'That's rich'
• Sardonic response
• 'Aren't we the comedian?!'
• Giggly noise
• 'I bet!'
• "That's funny, screenname123!"
• Laughing syllables
• 'Dream on!'
• Response to sarcasm, perhaps