26 Moby Thesaurus words for "down the drain": all gone, annihilated, consumed, dead, defunct, dissipated, done for, expired, extinct, gone, gone glimmering, gone to waste, had it, kaput, kaputt, lost, misspent, no more, passed away, perished, run to seed, spent, squandered, used, vanished, wasted

Source: Moby Thesaurus II by Grady Ward, 1.0