breach, n. — Green’s Dictionary of Slang

breach n.

also breach of Venus

the vagina.

1594		Shakespeare Rape of Lucrece 464: Rude ram, to batter such an ivory wall [...] To make the breach and enter this sweet city.
1624		Massinger Renegado II iii: This tis to want munition when a man Should make a breach and enter.
1656		‘Full Forty Times Over’ in Ebsworth Merry Drollery Compleat (1875) 61: There’s a breach ready made, which still open hath been, With thousands of thoughts to betray it within, If you once but approach you are sure to get in.
1675		Head Nugae Venales 303: Who is a bold daring Woman? [...] She that dares singly oppose ten Men at the entrance of one breach.
1688		‘Tom Tiler, or the Nurse’ in Lord Poems on Affairs of State (1963) IV 258: A Prince come in the nick of time (Bless’d d’Adda!), ’tis a venial crime / That shall repair our breach of state.
1693		Petition of the Widows in Harleian Misc. X (1810) 174: Getting of a maidenhead was a drudgery fit for none [...] there needs no great trouble to enter a city when a breach is once made in the walls.
1705		Wandering Spy 17–24 Nov. 26: The Company withdrew, and left the young Sailor to enter the Fort, by that Breach, where Enemies and Friends of all Nations had enter’d a Thousand times before.
1751		Smollett Peregrine Pickle (1964) 641: ‘Egad! ’tis my opinion, that if your covered way was laid open, few people would venture to give the assault.’ [...] ‘As for that matter,’ cried the other with precipitation, ‘they would have no occasion to batter in breach; they would find the angle of the la pucelle bastion demolished to their hands: he he!’.
1781		Belle’s Stratagem 67: Let me mount the downy breach of Venus.
1788		‘The Gobbio’ Chap Book Songs No. 5 7: He battered a breach, but missed his reach, / His faggots being too small to fill the ditch, / She off with disdain did fling him O.
1793		Bacchanalian Mag. 26: Original and selected Toasts and sentiments [...] Death in the Breach.
1890–1904		Farmer & Henley Sl. and Its Analogues.
1896		Farmer Vocabula Amatoria (1966) 48: brèche, f. 1. The female pudendum; ‘the breach’.