Green’s Dictionary of Slang

(UK Und.) a hangman.

1753		J. Poulter Discoveries (1774) 42: A Rispin and a craping Cull; a Bridewell and a Hangman.
1786		Whole Art of Thieving [as cit. 1753].
1799		‘Cant Lang. of Thieves’ Monthly Mag. 7 Jan. [as cit. 1753].