Green’s Dictionary of Slang

(UK Und.) a woman, spec. a prostitute.

1688		T. Shadwell Squire of Alsatia I i: What Ogling there will be between thee and the Blowings: Old staring at thy Equipage. And every Buttock shall fall down before thee.
1696		Motteux (trans.) Pantagruelian Prognostications (1927) II 693: Those whom Venus is said to rule, as punks, [...] strumpets, buttocks, blowings.
c.1785		‘The Dog & Duck Rig’ in Holloway & Black I (1975) 80: And O! my sweet blowing [...] Whose heart you might think it would break.
1797		London Sharper 80: In a rattler, sat two blowings.
c.1800		‘The Blue Lion’ in Holloway & Black I (1975) 32: With natty gig, strut, look so big / And fix upon a blowing.
1805		J. Davis Post Captain (1813) 144: Among the blowings at the Haymarket, or about Covent-garden, I have more impudence than a highwayman; but a modest girl always heaves me aback.
1808		B. Bradshaw Hist. of Billy Bradshaw 10: Every prig keeps a blowing or two.
c.1820		J. Jackson in Farmer Musa Pedestris (1896) 248: Then your blowing will wax gallows haughty, / When she hears of your scaly mistake.
1823		‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc. 12: Blowings—Whores.
1828		G. Smeeton Doings in London 255: Each of the thieves [...] has what he calls his ‘pal,’ or ‘blowing,’ to assist him. This ‘pal’ is a girl of the town.
1835		G. Kent Modern Flash Dict. 6: Blowings – prostitutes.
1836		‘Moll Blowse of Saffron Hill’ Flash Casket 98: Togg’ry decked each blowing’s hide, / Of furbelow and frill.
1840		Flash Mirror 5: At the Crown Coffee House, Drury Lane [...] blowings of every grade may be seen snoring with their heads upon the tables.
1848		Flash Dict. in Sinks of London Laid Open 99: Blowings, prostitutes.