Loo.  For the good of the loo; for the benefit of the company
  or community.

Looby.  An awkward, ignorant fellow.

Looking as if one could not help it.  Looking like a
  simpleton, or as if one could not say boh! to a goose.

Looking-glass.  A chamber pot, jordan, or member mug.

Loon, or lout.  A country bumkin, or clown.

LOONSLATE.  Thirteen pence halfpenny.

Loophole.  An opening, or means of escape.  To find a
  loophole in an act of parliament; i.e. a method of
  evading it,

Lop-sided. Uneven, having one side larger or heavier than
  the other:  boys’ paper kites are often said to be lop-sided.

To lope.  To leap, to run away.  He loped down the dancers;
  he ran down stairs.

Lord.  A crooked or hump-backed man.  These unhappy
  people afford great scope for vulgar raillery; such as, ’Did
  you come straight from home? if so, you have got confoundedly
  bent by the way.’  ‘Don’t abuse the gemman,’
  adds a by-stander, ’he has been grossly insulted already;
  don’t you see his back’s up?’ Or someone asks him if the
  show is behind; ‘because I see,’ adds he, ’you have the
  drum at your back.’  Another piece of vulgar wit is let
  loose on a deformed person:  If met by a party of soldiers
  on their march, one of them observes that that gentleman
  is on his march too, for he has got his knapsack at his back. 
  It is said in the British Apollo, that the title of lord was
  first given to deformed persons in the reign of Richard III.
  from several persons labouring under that misfortune being
  created peers by him; but it is more probably derived
  from the Greek word [Greek:  lordos], crooked.

Louse.  A gentleman’s companion.  He will never louse a
  grey head of his own; he will never live to be old.

Love begotten child.  A bastard.

Lounge.  A loitering place, or gossiping shop.

Louse bag.  A black bag worn to the hair or wig.

Louse house.  The round house, cage, or any other place of confinement.

Louse ladder.  A stitch fallen in a stocking.

Louse land.  Scotland.

Louse trap.  A small toothed comb.

Lout.  A clumsy stupid fellow.

Lowing rig.  Stealing oxen or cows.

Low pad.  A footpad.

Low tide, or low water.  When there is no money in
  a man’s pocket.

LOWRE.  Money.  Cant.

Lubber.  An awkward fellow:  a name given by sailors to
  landsmen.