Green’s Dictionary of Slang

(UK Und.) the neck.

1674		Head Canting Academy (2nd edn).
c.1698		B.E. Dict. Canting Crew.
1707		J. Shirley Triumph of Wit n.p.: Let the Harman-beck trine with his Kinchins about his Coloquaron … let the Constable hang with his Children about his Neck.
1725		‘Retoure My Dear Dell’ in Farmer Musa Pedestris (1896) 45: And if it should e’er be my hard fate to trine, / I never will whiddle, I never will squeek, / Nor to save my colquarron endanger thy neck.
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. n.p.: colquarron a Man’s Neck; as, His Colquarron is just about to be twisted. He is just going to be turn’d off.
c.1750–1882		B.M. Carew Life and Adventures.
1754		Scoundrel’s Dict. 19: The Ruffin nab the Cuffinquere, & let the harmanbeck trine with his Kinchins about his coloquaron.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: Colquarron, a man’s neck, (cant) his colquarron is just about to be twisted, he is just going to be hanged.
a.1790		H.T. Potter New Dict. Cant (1795) n.p.: colquarion a man’s neck.
1809		G. Andrewes Dict. Sl. and Cant.
1811		Lex. Balatronicum.
1821		Flash Dict. [as cit. a.1790].
1830		Lytton Paul Clifford I 14: ’Tis a rum business and puzzles I; but mum’s the word, for my own little colquarron.
1834		‘Jack Downing’ Andrew Jackson 43: [They] cotcht one another by the kolquarron till they cou’dn’t squeek.
1835		G. Kent Modern Flash Dict. 10: Colguarin [sic] – the neck.
1848		Flash Dict. in Sinks of London Laid Open 103: Colguarian [sic], the neck.