British slang (dated) for a prison.

synoniem: chokey.

Roget 752: prison, prison house; jail, gaol, cage, coop, den, cell; stronghold, fortress, keep, donjon, dungeon, Bastille, oubliette, bridewell^†, house of correction, hulks, tollbooth, panopticon^†, penitentiary, guardroom, lockup, hold; round house, watch house, station house, sponging house; station; house of detention, black hole, pen, fold, pound; inclosure etc. 232; isolation (exclusion) 893; penal settlement, penal colony; bilboes, stocks, limbo, quod [Lat.]; calaboose, chauki^†, choky^†, thana^†; workhouse [U.S.].    Newgate, Fleet, Marshalsea; King's Bench, Queen's Bench.    bond; bandage; irons, pinion, gyve, fetter, shackle, trammel, manacle, handcuff, straight jacket, strait jacket, strait-jacket, strait-waistcoat, hopples^†; vice, vise.    yoke, collar, halter, harness; muzzle, gag, bit, brake, curb, snaffle, bridle; rein, reins; bearing rein; martingale; leading string; tether, picket, band, guy, chain; cord etc. (fastening) 45; cavesson^†, hackamore [U.S.], headstall, jaquima [U.S.], lines, ribbons.    bolt, deadbolt, bar, lock, police lock, combination lock, padlock, rail, wall, stone wall; paling, palisade; fence, picket fence, barbed wire fence, Cyclone fence, stockade fence, chain-link fence; barrier, barricade.    drag etc. (hindrance) 706.    ... meer laten zien

So tight as to tend to choke.