down the drain

Wasted resources. The term, alluding to water flowing down a drain, was transferred to expending effort or funds on a useless enterprise. “Well, fancy giving money to the Government! Might as well have put it down the drain,” wrote Sir Alan Patrick Herbert (1890–1971) in Too Much. To go down the drain means to become worthless. It was so used by W. Somerset Maugham (The Breadwinner, 1930): “All his savings are gone down the drain.”