JACOB. A ladder: perhaps from Jacob's dream. CANT. Also the common name for a jay, jays being usually taught to say, Poor Jacob! a cup of sack for Jacob.
JACOBITES. Sham or collar shirts. Also partizans for the Stuart family: from the name of the abdicated king, i.e. James or Jacobus. It is said by the whigs, that God changed Jacob's name to Israel, lest the descendants of that patriarch should be called Jacobites.
JADE. A term of reproach to women.
JAGUE. A ditch: perhaps from jakes.
JAIL BIRDS. Prisoners.
JAKES. A house of office, a cacatorium.
JAMMED. Hanged. CANT.
JANIZARIES. The mob, sometimes so called; also bailiffs, their setters, and followers.
JAPANNED. Ordained. To be japanned; to enter into holy orders, to become a clergyman, to put on the black cloth: from the colour of the japan ware, which is black.
JARK. A seal.