Related Clues:

• "I don't think so!"
• No, informally
• Now alternative
• 'I'd rather not'
• 'Ixnay'
• Opposite of 'yeah'
• "Not on your life!"
• 'Forget about it!'
• "Uh-uh!"
• Defiant cry
• Impossibly, informally
• ''When pigs fly!''
• ''Nope''
• ''Nothing doing!''
• Relaxed rejection