Related Clues:

• Mayday relative
• Request for rescue
• Emergency message
• Poseidon's call
• Mayday cousin
• CQD successor
• Terse radio message
• '___ yer old man!'
• 'Mayday!'
• '-- your old man!'
• Mayday!
• It's sometimes written in the sand
• Maritime message
• Urgent request
• Urgent letters?