an arm and a leg An exorbitant amount of money; a popular American hyperbole. bleed See EXTORTION. for a song Cheaply, inexpensively, at low cost, for little or nothing. A song meaning ‘a trifle or thing of no consequence’ may stem from the supposed retort of Baron Burleigh on being ...
When something is said to cost an arm and a leg, it's extremely expensive. Generally speaking, the term "costs an arm and a leg...