A substance, usually a liquid, used to clean drains by unclogging material lodged inside them.

plural of drain cock

Alternative form of draincock.

(Britain, simile) To laugh with a loud, coarse sound

(euphemistic, idiomatic) Synonym of go down the toilet: to fail.

(vulgar slang, of men) To urinate.

Third-person singular simple present indicative form of go down the drain

present participle of go down the drain

simple past tense of go down the drain

past participle of go down the drain