Related Clues:

• Shout on deck
• "Yo!" asea
• It's shouted between decks
• Sailor's hailing call
• Main attention-getter?
• “Hi, sailor”
• Stop, on a tub
• Ship-to-ship communication
• Tar's 'Stop!'
• Call aboard
• 'Stop!' at sea
• ''Cut it out, Sailor!''
• Stopper from a tub?
• Tub stopper?
• Stern cry?