Related Clues:

• "Step on it!"
• PDQ
• 'On the double!'
• On the double!
• ''Right now!''
• At once
• In nothing flat
• Italian phone greeting
• '(I need it) yesterday!'
• ''Stat!''
• "Right away!"
• "Now!"
• "Immediately if not sooner!"
• Word of urgency
• 'Chop-chop!'