Green’s Dictionary of Slang

late 18C-the gallows.

1791		H. Lemoine ‘Education’ in Attic Misc. 117: Both’ring the flats assembled round the quod / The queerum queerly smear’d with dirty black.
1823		‘Jon Bee’ Dict. of the Turf, the Ring, the Chase, etc.
1824		‘Sonnets for the Fancy’ in Egan Boxiana III 622: [as 1791].