Related Clues:

• Cynic's snort
• 'As if!'
• Sarcastic comment
• "Yeah, right!"
• Some tennis strokes
• 'Ha!'
• 'Fat chance'
• "A likely story!"
• 'Whatever'
• Skeptical exclamation
• Sarcastic reply to an assurance
• 'That'll be the day!'
• "Baloney!"
• 'Like that's gonna happen!'
• Doubter's scoff