in sailor's mythology, Davy Jones is the name given to the devil who lives at the bottom of the sea. He is thought by some to have been a Welshman who became the devilish guardian of the deep who regards the bottom of the ocean as his storeroom. Hence anyone who falls overboard and drowns is said to have gone to Davy Jones' locker. —Welcome to the SO Glossary Final approval 2-Mar-90