Davy Jones's locker

Etymology
There has been much speculation about the origin of this term, but none has been substantiated. See more at  on Wikipedia.

Proper noun

 * 1)  The bottom of the ocean, seen as a grave for sailors and the resting-place of anything that goes overboard and is lost.

Translations

 * Finnish: Ahdin valtakunta
 * French: le grand bouillon
 * German: Grab in Meerestiefe
 * Italian: Lo scrigno di Davy Jones
 * Russian: могила моряков (mogíla morjakóv)
 * Spanish: el fondo del mar
 * Welsh: