Related Clues:

• Part of a naval exchange?
• Gob's salute
• Offshore salute
• Hand's shout
• Sailor hailer
• Animal's den
• Nautical hey there
• Nautical call
• Shout on deck
• "Yo!" asea
• It's shouted between decks
• Sailor's hailing call
• Main attention-getter?
• “Hi, sailor”
• Ship-to-ship communication