Related Clues:

• Very quickly
• Speedily, speedily
• "Step on it!"
• Promptly, on a memo
• PDQ
• "Don't dawdle!"
• "Hurry up," on memos
• Letters of haste
• Memo acronym
• Pronto, on a memo
• Trump's "today!"
• 'On the double!'
• On the double!
• "Stat!"
• Memo letters