Related Clues:

• 'You can't be serious!'
• "Let's get crackin'!"
• 'Get real!'
• "Pretty please?"
• 'For real?'
• Porter's 'Let's --'
• "That oughta ___!"
• Slangy summons
• Commanding phrase
• "Hurry up!"
• 'Time's a-wastin'!'
• "Follow me!"
• 'You've gotta be kidding!'
• 'Don't gimme that!'
• "You gotta be kidding!"