Green’s Dictionary of Slang

to leave an inn or tavern, forcing one’s companion to pay the bill.

1672		Wycherley Love in a Wood V i: In truth, I have forsworn the place, ever since I was pawn’d there for a reckoning.
1697		Cibber Woman’s Wit I i: Then [...] pick’d up a Parson’s Wife, gave her the Remains of an old Clap, and so pawn’d her at Philip’s for three Pints of Spirit of Clary.
c.1698		B.E. Dict. Canting Crew n.p.: To Pawn any Body, to steal away and leave him or them to Pay the Reckoning.
1725		New Canting Dict. [as cit. c.1698].