Green’s Dictionary of Slang

carnal-trap n.

the vagina.

1653		Urquhart (trans.) Gargantua and Pantagruel (1927) I Bk II 358: He is a gallant, and doth so well know how to find out all the corners, creeks and ingrained inmates in your carnal trap.
1888–94		‘Walter’ My Secret Life (1966) VII 1350: We got into bed again, and I looked at their carnal man traps.
1896		Farmer Vocabula Amatoria (1966) 208: Pénillière, f. 1. The female pudendum; ‘the carnal-trap’.
c.1904		A. Crowley Snowdrops from a Curate’s Garden 36: Drop by drop I distilled love’s essence into that clinging carnal-trap.