Green’s Dictionary of Slang

lavatory paper.

1653		Urquhart (trans.) Gargantua and Pantagruel (1927) I Bk I 52: I wiped my bum [...] with a pannier, but that was a wicked and unpleasant torchecul [...] Now, I prythee, go on in this torchuclatife, or wipe-bummatory discourse.
c.1698		B.E. Dict. Canting Crew n.p.: Torch-cul the same as Bum-fodder.
1725		New Canting Dict. [as cit. c.1698].
1737, 1759, 1760, 1776		Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
1760		N. Bailey New universal Ety. Eng. Dict. n.p.: TORCH Cul, Bumfodder.
1770		Fugitive Political Essays (from Public Advertiser, London) 119: [T]herefore he uses him only as a torch-cul, and swears that his skin is more warm, soft, and comfortable than Rabelais’ goose-neck.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue n.p.: Torchecul. Bumfodder.
1811		Lex. Balatronicum [as cit. 1785].