Green’s Dictionary of Slang

cuniculary warehouse n.

[joc. elaboration of cunny n. (1)]

a brothel.

[UK]N. Ward Compleat and Humorous Account of Remarkable Clubs (1756) 269: For the better Promotion of the good old Trade of basket-Making, she got an experienced Covy of Salacious Wag-Tails to settle a Club at her Cuniculary Ware-House.