Related Clues:

• Opposition call
• Slangy dissent
• Negative slang word
• Casual denial
• Word of refusal
• Roll-call call
• ''I don't think so''
• Vote, maybe
• Con's utterance
• 'Aye' canceler
• Terse refusal
• Opposition response
• Certain vote
• "When pigs fly!"
• "Not gonna happen"