Related Clues:

• Conditional words
• Phrase spoken by 16-Across
• 'Follow us!'
• 'Shake a leg!'
• "Yeah, right!"
• 'Like that would ever happen!'
• "Like that would happen!"
• "Let's go!"
• "Good grief!"
• 'What are you waiting for?!'
• 'You can't be serious!'
• "Let's get crackin'!"
• Teen's catchphrase
• "A likely story!"
• 'Get real!'