(idiomatic) A possession or financial commitment, especially a building or vehicle, that creates substantial ongoing expenses, especially one whose costs are considered to be unsustainable.

(sometimes capitalized) Long-standing nickname of a complicated, seemingly man-made excavation on Oak Island in Nova Scotia, Canada, rumored to contain pirate treasure and which has been repeatedly and unsuccessfully probed at great expense.

Alternative form of pin money

(historical) An allowance of money given by a man to his wife or to other dependents for their personal, discretionary use.

The virtual money used in e-banking.

Alternative form of spending money

A sum of cash kept in one's personal possession, for routine expenses or incidental purchases.

(historical) A tax applied to coastal towns for their defence in wartime.

plural of money tree

The act of exchanging currency of one type for another for a fee or percentage.