Green’s Dictionary of Slang

sexually aroused, ‘desirous of Copulation’ (B.E.).

1598		in Florio Worlde of Wordes n.p.: Esser in frega, to be proud or salt as a bitch.
1612		N. Field Woman is a Weathercock V ii: Heart! I have so ruminated on a wife, that I must have one this night, or I shall run proud.
1629		W. Davenant Albovine I i: When I see her, I grow proud below the navel.
c.1673		Rochester ‘A Ramble in St James’s Park’ in Works (1999) 78: So a proud Bitch does lead about / Of humble Currs the Am’rous Rout.
c.1698		B.E. Dict. Canting Crew.
1785, 1788, 1796		Grose Classical Dict. of the Vulgar Tongue.
1811		Lex. Balatronicum.
1823		Egan Grose’s Classical Dict. of the Vulgar Tongue.