He has saved his bacon; he has escaped. He has a good voice to beg bacon; a saying in ridicule of a bad voice.

BACON-FACED. Full-faced.

BACON FED. Fat, greasy.

BACK GAMMON PLAYER. A sodomite.

BACK DOOR (USHER, or GENTLEMAN OF THE). The same.

BAD BARGAIN. One of his majesty's bad bargains; a worthless soldier, a malingeror. See MALINGEROR.

BADGE. A term used for one burned in the hand. He has got his badge, and piked; he was burned in the hand, and is at liberty. Cant.

BADGE-COVES. Parish Pensioners. Cant.

BADGERS. A crew of desperate villains who robbed near rivers, into which they threw the bodies of those they murdered. Cant.

BAG. He gave them the bag, i.e. left them.

BAG OF NAILS. He squints like a bag of nails; i. e. his eyes are directed as many ways as the points of a bag of nails. The old BAG OF NAILS at Pimlico; originally the BACCHANALS.

BAGGAGE. Heavy baggage; women and children. Also a familiar epithet for a woman; as, cunning baggage, wanton baggage, &c.

BAKERS DOZEN. Fourteen; that number of rolls being allowed
  to the purchasers of a dozen.

BAKER-KNEE'D. One whose knees knock together in
  walking, as if kneading dough.

BALDERDASH. Adulterated wine.

BALLOCKS. The testicles of a man or beast; also a vulgar
  nick name for a parson. His brains are in his ballocks,
  a cant saying to designate a fool.

BALUM RANCUM. A hop or dance, where the women are
  all prostitutes. N. B.