Related Clues:

• 'That is so funny'
• Laugh syllable
• Jeer
• 'Gotcha!'
• 'Yeah, right!'
• Guffaw
• 8-Down sound
• 'I knew it!'
• See 7-Down
• Stadium sound
• Joker's gibe
• 'When pigs fly!'
• 'Oh, very funny!'
• Loud laugh
• Bird call