What is Stash?
Stash definition and meaning on Dictionary terms:
verb (used with object)
to put by or away as for safekeeping or future use, usually in a secret place (usually followed by away): The squirrel stashes away nuts for winter.
something put away or hidden: a stash of gold coins buried in the garden.
a place in which something is stored secretly; hiding place; cache.
Slang. a supply of hidden drugs.