Green’s Dictionary of Slang

an appetite, a capacity for eating.

1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: A good twist; a good appetite.
1811		Lex. Balatronicum [as cit. 1785].
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.
1830		Owl (NY) 10 July n.p.: One of our city Aldermen has a pretty considerable twist, and [...] he can dissect a turkey with excellent dexterity.
1850		F.E. Smedley Frank Fairlegh (1878) 142: The only decent bit of chicken I managed to lay hands on at supper, Di Clapperton ate: precious twist that girl has to be sure.
1864, 1867, 1870		Hotten Sl. Dict.
1895		Crowe Aus. Sl. Dict. 90: Twist, [...] good appetite, as ‘he has a great twist’.
1953		J. Franklyn Cockney 294: After that she might have a good twist on her (twist, a good appetite).