Related Clues:

• 'Oh, sure!'
• More than a tee-hee
• Self-conscious laugh
• Sneaky laughs
• 'I told you so!'
• 'Very funny!'
• Resound
• Sow sound
• Santa sounds
• A few laughs
• Giggle
• 'And pigs fly!'
• Shot
• Clap
• 'Fat chance!'