Cupboard love.  Pretended love to the cook, or any other
  person, for the sake of a meal.  My guts cry cupboard;
  i.e.  I am hungry

Cupid, blind Cupid.  A jeering name for an ugly blind
  man:  Cupid, the god of love, being frequently painted
  blind.  See blind Cupid.

Cur.  A cut or curtailed dog.  According to the forest laws,
  a man who had no right to the privilege of the chase, was
  obliged to cut or law his dog:  among other modes of
  disabling him from disturbing the game, one was by depriving
  him of his tail:  a dog so cut was called a cut or
  curtailed dog, and by contraction a cur.  A cur is figuratively
  used to signify a surly fellow.

Curbing law.  The act of hooking goods out of windows: 
  the curber is the thief, the curb the hook.  Cant.

Cure A-se.  A dyachilon plaister, applied to the parts galled
  by riding.

Curle.  Clippings of money, which curls up in the operation.  Cant.

Curmudgeon.  A covetous old fellow, derived, according
  to some, from the French term coeur mechant.

Curry.  To curry favour; to obtain the favour of a person
  be coaxing or servility.  To curry any one’s hide; to beat
  him.

Curse of Scotland.  The nine of diamonds; diamonds, it
  is said, imply royalty, being ornaments to the imperial
  crown; and every ninth king of Scotland has been observed
  for many ages, to be a tyrant and a curse to that country. 
  Others say it is from its similarity to the arms of Argyle;
  the Duke of Argyle having been very instrumental in
  bringing about the union, which, by some Scotch patriots,
  has been considered as detrimental to their country.

Curse of god.  A cockade.

CURSITORS.  Broken petty-fogging attornies, or Newgate
  solicitors.  Cant.

Curtails.  Thieves who cut off pieces of stuff hanging out
  of shop windows, the tails of women’s gowns, &c.; also,
  thieves wearing short jackets.

Curtain lecture.  A woman who scolds her husband
  when in bed, is said to read him a curtain lecture.

CURTEZAN.  A prostitute.

Cushion.  He has deserved the cushion; a saying of one
  whose wife is brought to bed of a boy:  implying, that
  having done his business effectually, he may now indulge or
  repose himself.

Cushion thumper, or Duster.  A parson; many of whom
  in the fury of their eloquence, heartily belabour their cushions.

Custard cap.  The cap worn by the sword-bearer of the
  city of London, made hollow at the top like a custard.

Custom-house goods.  The stock in trade of a prostitute,
  because fairly entered.