transitive. To drain (a drinking vessel) in one draught or in long draughts; to quaff. Cf. quass, v.

transitive. To empty (a vessel, receptacle, etc.); esp. to empty by drinking, to drink off the contents of.

transitive. To drain (a cup, bottle, etc.) in a copious draught or draughts. Occasionally with off, out, up. Also figurative.

transitive. colloquial. To drain or finish (a drink, esp. an alcoholic one). Obsolete.

upsy Friese Hence upsy-ˈfriese v. to drain or empty (a pot of liquor). upsy-ˈfriesy adj. addicted to drinking deeply.

transitive. With off. To consume (an alcoholic drink) quickly; to ‘knock back’. Obsolete.

transitive. To drink quickly, ‘toss off’ (liquor).

quasi-transitive with away. †Also, to empty (a pot) by drinking.

transitive. To turn upside down; to overturn, capsize; to drink off (liquor) to the bottom; also transferred and figurative to upset, throw into…

transitive. ‘To empty the vessel from which one drinks, to drink its whole contents’ (Jamieson). Const. off, out, up.

transitive. To finish to the last drop in the bottle.

transferred. To consume; to eat or drink; spec. to empty (a bottle of liquor). colloquial (originally U.S.).

In various figurative uses. colloquial. To empty, finish (a bottle, etc.).

transitive. slang. To consume (a drink, esp. an alcoholic drink). Cf. down, v.1 6b.

transitive. To consume (a drink, esp. an alcoholic beverage) rapidly or in one go. Also with back, down, etc. Cf. slammer, n.1 additions.