Davy Jones's lockerDavy Jones's lock‧er /ˌdeɪvi ˌdʒəʊnzəz ˈlɒkə $ ˌdʒoʊnzɪz ˈlɑːkər/ 
an old-fashioned humorous name for the bottom of the sea, where people who die at sea are said to be: 
The old pirate’s in Davy Jones’s locker now.
an old-fashioned humorous name for the bottom of the sea, where people who die at sea are said to be: The old pirate’s in Davy Jones’s locker now.