Kiss mine A-se.  An offer, as Fielding observes, very
  frequently made, but never, as he could learn, literally
  accepted.  A kiss mine a-se fellow; a sycophant.

Kissing crust. That part where the loaves have touched
  the oven.

Kit.  A dancing-master, so called from his kit or cittern, a
  small fiddle, which dancing-masters always carry about
  with them, to play to their scholars.  The kit is likewise
  the whole of a soldier’s necessaries, the contents of his
  knapsack:  and is used also to express the whole of different
  commodities:  as, Here, take the whole kit; i.e. take
  all.

Kit-cat club.  A society of gentlemen, eminent for wit
  and learning, who in the reign of queen Anne and George
  I. met at a house kept by one Christopher Cat.  The
  portraits of most of the members of this society were painted
  by Sir Godfrey Kneller, of one size; thence still called the
  kit-cat size.

Kitchen physic.  Food, good meat roasted or boiled.  A
  little kitchen physic will set him up; he has more need of
  a cook than a doctor.

Kittle pitchering.  A jocular method of hobbling or
  bothering a troublesome teller of long stories:  this is done
  by contradicting some very immaterial circumstance at
  the beginning of the narration, the objections to which
  being settled, others are immediately started to some new
  particular of like consequence; thus impeding, or rather
  not suffering him to enter into, the main story.  Kittle
  pitchering is often practised in confederacy, one relieving
  the other, by which the design is rendered less obvious.

KITTYS.  Effects, furniture; stock in trade.  To seize one’s
  kittys; to take his sticks.

Knack shop.  A toy-shop, a nick-nack-atory.

KNAPPERS poll.  A sheep’s head.  Cant.

Knave in grain.  A knave of the first rate:  a phrase
  borrowed from the dyehouse, where certain colours are said to
  be in grain, to denote their superiority, as being dyed with
  cochineal, called grain.  Knave in grain is likewise a pun
  applied to a cornfactor or miller.

Knight of the blade.  A bully.

Knight of the post. A false evidence, one that is ready
  to swear any thing for hire.

Knight of the rainbow.  A footman:  from the variety
  of colours in the liveries and trimming of gentlemen of
  that cloth.

Knight of the road.  A highwayman.

Knight of the sheers.  A taylor.

Knight of the thimble, or needle.  A taylor or stay-maker.