Related Clues:

• Opposite of "yep"
• "Not happening!"
• "Sorry, can't"
• 'Uh-unh'
• "Forget about it"
• "Nothing doing"
• "Clueless" exclamation
• 'Not a chance!'
• "Fuggedaboutit!"
• "Get real!"
• 'You're mistaken'
• "Doubtful"
• 'Sorry, dude'
• Certainly not
• 'I don't think so!'