Sentence:  Where the Red Lion ſtaring o'er the way, / Invites each paſſing ſtranger that can pay; / Where "Calvert'''s butt, and "Parſon'''s black champaign, / Regale the <WSD>drabs</WSD> and bloods of Drury-lane; [...] 
Meaning of the word marked with <WSD> tags:  A promiscuous woman, a slut; a prostitute.