Green’s Dictionary of Slang

pigeonhole n.

[SE pigeonhole, a small hole or recess]

1. (UK Und.) the stocks.

[UK]Greene Disputation Betweene a Hee and a Shee Conny-Catcher (1923) 38: I dare scarce speake of Bridewell because my shoulders tremble at the name of it, yet looke but in there, and you shall heare poore men with their handes in their Piggen hoales crye, Oh fie vpon whoores, when Fouler giues them the terrible lash.
[UK]Jonson Bartholomew Fair IV iv: Down with him in His Majesty’s name, down, down with him, and carry him away, to the pigeon-holes.
[UK]J. Eachard (trans.) Plautus’s Rudens III xiv: He’ll be stock’d into the Pigeon Holes, where I’m afraid the poor Devil must make his Nest to night.
[US]Monteleone Criminal Sl. (rev. edn).

2. the vagina.

[UK]Farmer & Henley Sl. and Its Analogues.