Related Clues:

• Teen's catchphrase
• "Ixnay"
• "A likely story!"
• 'Get real!'
• Curt turndown
• "Yeah, right!" in teenspeak
• "Not a chance!"
• 'That'll be the day!'
• "In your dreams!"
• 'Like that's gonna happen!'
• "Oh, you wish!"
• "Yeah, right"
• 'Clueless' expletive
• 'Don't think so!'
• Opposite of 15-Across