Job’s Comfort.  Reproof instead of consolation.

Job’s comforter.  One who brings news of some
  additional misfortune.

Job’s dock.  He is laid up in Job’s dock; i.e. in a salivation. 
  The apartments for the foul or venereal patients in St.
  Bartholomew’s hospital, are called Job’s ward.

JOBATION.  A reproof.

JOBBERNOLE.  The head.

To job.  To reprove or reprehend.  Cambridge term.

Job.  Any robbery.  To do a job; to commit some kind of
  robbery.

Jock, or crowdy-headed Jock.  A jeering appellation for
  a north country seaman, particularly a collier; Jock being
  a common name, and crowdy the chief food, of the lower
  order of the people in Northumberland.

To Jock, or JOCKUM cloy.  To enjoy a woman.

JOCKUM gage.  A chamber-pot, jordan, looking-glass, or
  member-mug.  Cant.

JOGG-trot.  To keep on a jogg-trot; to get on with a slow
  but regular pace.

Johnny bum.  A he or jack ass:  so called by a lady that
  affected to be extremely polite and modest, who would
  not say Jack because it was vulgar, nor ass because it
  was indecent.

Joint.  To hit a joint in carving, the operator must think
  of a cuckold.  To put one’s nose out of joint; to rival one
  in the favour of a patron or mistress.

Jolly, or jolly nob.  The head.  I’ll lump your jolly
  nob for you; I’ll give you a knock on the head.

Jolly dog.  A merry facetious fellow; a Bon VIVANT, who
  never flinches from his glass, nor cries to go home to
  bed.

Jolter head.  A large head; metaphorically a stupid fellow.

JORDAIN.  A great blow, or staff.  I’ll tip him a jordain if
  I transnear; i.e.  I’ll give him a blow with my staff, if I
  come near him.  Cant.

Jordan.  A chamber-pot.

Jorum.  A jugg, or large pitcher.

Joseph.  A woman’s great coat.  Also, a sheepish bashful
  young fellow:  an allusion to Joseph who fled from Potiphar’s
  wife.  You are Josephus rex; you are jo-king, i. e.
  joking.

Joskin.  A countryman.  The dropcove maced the Joskin
  of twenty quid; The ring dropper cheated the
  countryman of twenty guineas.

Jowl.  The cheek.  Cheek by jowl; close together, or cheek
  to cheek.  My eyes how the cull sucked the blowen’s
  jowl; he kissed the wench handsomely.