Related Clues:

• ''Act now!''
• 'Get a move on!'
• 'I dare you!'
• Verbal nudge
• ''Give it a try''
• 'What are you waiting for?!'
• Approval
• Porter's 'Let's --'
• "That oughta ___!"
• Okay
• Commanding phrase
• "I dare you!"
• Cole Porter's 'Let's --'
• 'Stop procrastinating!'
• That's an order