Related Clues:

• Valley girl's comeback
• Cynic's snort
• Hypothetical words
• Expression of ridicule
• Conditional words
• Phrase spoken by 16-Across
• 'As if!'
• Sarcastic comment
• "Yeah, right!"
• 'That's right'
• Some tennis strokes
• 'Like that would ever happen!'
• Agreement utterance
• "Like that would happen!"
• 'Pshaw!'