Related Clues:

• 'You ___ kiddin'!'
• 'Forget about it!'
• "Uh-uh!"
• The "nonexistent" contraction
• Slangy rejection
• '___ We Got Fun'
• Impossibly, informally
• ''When pigs fly!''
• ''Nope''
• '-- No Sunshine'
• ''That ___ hay!''
• Relaxed rejection
• 'Not a chance'
• 'Naw'
• '-- Misbehavin''