Green’s Dictionary of Slang

to flog, to whip (esp. of convicted villains who were secured to a cart for their punishment); thus teasing/teazing n.

a.1790		H.T. Potter New Dict. Cant (1795) n.p.: teaze to be whipped at a cart’s tail.
1807		H. Tufts Autobiog. (1930) 292: Teasing signifies whipping.
1812		Vaux Vocab. of the Flash Lang.
1821		Egan Life in London (1869) 39: Wherein, of hundred topp’d, thousands lagg’d; / And of the innumerable teazings thou has book’d.
1833		[T. Wontner] Old Bailey Experience 43: ‘[O]nly three months and a teazing. Never mind! that's over in ten minutes; (meaning the flogging).
1848		Flash Dict. in Sinks of London Laid Open [as cit. 1835].
1911		E. Dyson ‘Barracking’ in Benno and Some of the Push 144: That’s the way to tease ’em, the blighters! [...] Lay ’em out! Stiffen ’em!