Related Clues:

• "Doubtful"
• Contemptuous reaction
• Scoffer's exclamation
• The expression needs just a bit more to raise a laugh
• Exclaim this up and down
• A could make the expression laughable
• The South could make such an expression royal
• ''Ha!''
• "Don't make me laugh!"
• 'That doesn't surprise me!'
• "That's rich!"
• 'Uh-huh, yeah, sure'
• Skeptic's exclamation
• Brief chuckle
• Skeptic's rejoinder