Related Clues:

• 'Sorry...'
• Scoffing retort
• "As if!"
• Casual refusal
• ''That'll be the day!''
• "Doubt it"
• 'Uh uh!'
• Informal turndown
• 'Never gonna happen'
• Casual turndown
• Remark of the unsold
• Sarcastic reponse
• Cynic's comment
• "Oh, sure!"
• "Suuure"