Green’s Dictionary of Slang

swallow n.

1. the throat.

[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: gutter lane the throat, the swallow, the red lane.
[UK]Lex. Balatronicum.
[UK]G. Kent Modern Flash Dict.
[UK]Punch i 169: Men with swallows like Thames Tunnels.
[Aus]Bulletin (Sydney) 10 Oct. 48/2: Presen’ly bits o’ th’ beers will grease ’is swaller all th’ way down, an’ he’ll come in fa th’ fourth beer.

2. a mouthful.

[UK]W.T. Moncrieff Tom and Jerry III iii: There’s a swallow, Herry, this fellow is a perfect mop.
[UK]Southern Sketches 33: Then he took out a tickler of whiskey; and, after he’d took three or four swallows out ’n it, says he, ‘Oblige me by taking a horn’ [F&H].
[UK]A.H. Buck Hbk of Medical Sciences v 4: A swallow or two of hot milk sometimes aids in coughing up tenacious mucus [F&H].
[US]E.N. Westcott David Harum 212: She took a swallow of the wine.
[US]H.C. Witwer Classics in Sl. 53: Bein’ that close to her sent my blood crashin’ through my veins like I hadst just quaffed off a swallow of this prohibition hooch!
[US]C. McCullers Heart is a Lonely Hunter (1986) 156: As she ate she drank a glass of water to help wash down the swallows.

3. a puff of a cigarette.

[UK]Partridge DSUE (8th edn) 1181/1: C.20.