Davy Jones’ Locker is an idiom for the bottom of the sea: the state of death among drowned sailors and shipwrecks.
How is the Locker Used?
In ‘Treasure Island’, Davy Jones’ Locker is a small board where players must dump excess treasures when they are in possession of more treasure types than are allowed (which varies, depending on the number of players involved).
Salvaging Treasure from the Locker
Other players may subsequently retrieve items from here, if they already possess treasures of matching types.