Related Clues:

• Skeptic's challenge
• "Huh-uh"
• Skeptical reply
• Response of disbelief
• Disbeliever's comment
• "Ain't gonna happen"
• 'Mmm hmm ...'
• 'Su-u-ure'
• Casual rejection
• "Can't help ya"
• "Fat chance"
• 'Doubtful'
• "Sure, whatever!"
• ''My eye!''
• 'Mmm hmm'