Related Clues:

• 'Su-u-ure'
• ''No kidding?''
• "For real?"
• "Fat chance"
• 'Doubtful'
• "Sure, whatever!"
• ''My eye!''
• 'Mmm hmm'
• "Dream on!"
• Doubting riposte
• Sarcastic exclamation
• "Says who?"
• Cynical response
• ''Says who?''
• Skeptical retort