Old English dreahnian "to drain, strain out," from Proto-Germanic *dreug-, source of drought, dry, giving the English word originally a sense of "make dry." Figurative meaning of "exhaust" is attested from 1650s. The word is not found in surviving texts between late Old English and the 1500s. Related: Drained; draining.
1550s, from drain (v.).
A device, such as a tube, inserted into the opening of a wound or into a body or dental cavity to facilitate discharge of fluid or purulent material. v. drained, drain·ing, drains
To draw off a liquid gradually as it forms.
To go to wrack and ruin; be lost or destroyed: Bache was in danger of going down the chute with the price of silver/ speaks of a whole generation going down the tube/ and all of that is going right down the drain/ Should the Government sanction the act of simply sending taxpayers' dollars straight down the gurgler?/ Our foreign policy would not be down the toilet (entry form 1963+, chute 1940s+, drain 1925+, toilet 1980s, tubes 1970s)