Related Clues:

• 'Uh-uh'
• 'Don't sweat it'
• 'Nope'
• 'Fat chance!'
• Rebuttal to 24-Across
• Down-home turndown
• 'No dice'
• 'I don't believe it!'
• 'Uh-uh!'
• 'I don't think so'
• Yep's opposite
• 'Fuhgeddaboudit!'
• 'Nope!'
• Slangy negative
• 'I don't buy it'