Fumbler.  An old or impotent man.  To fumble, also
  means to go awkwardly about any work, or manual
  operation.

Fun.  A cheat, or trick.  Do you think to fun me out of
  it?  Do you think to cheat me?—­Also the breech, perhaps
  from being the abbreviation of fundament.  I’ll kick your
  fun.  Cant.

To funk.  To use an unfair motion of the hand in plumping
  at taw.  Schoolboy’s term.

Funk.  To smoke; figuratively, to smoke or stink through
  fear.  I was in a cursed funk.  To funk the cobler; a
  schoolboy’s trick, performed with assafoettida and cotton,
which
  are stuffed into a pipe:  the cotton being lighted, and the
  bowl of the pipe covered with a coarse handkerchief, the
  smoke is blown out at the small end, through the crannies
  of a cobler’s stall.

FURMEN.  Aldermen.

Furmity, or fromenty.  Wheat boiled up to a jelly.  To
  simper like a furmity kettle:  to smile, or look merry about
  the gills.

Fuss.  A confusion, a hurry, an unnecessary to do about
  trifles.

FUSSOCK.  A lazy fat woman.  An old fussock; a frowsy
  old woman.

Fustian.  Bombast language.  Red fustian; port wine.

Fusty LUGGS.  A beastly, sluttish woman.

To fuzz.  To shuffle cards minutely:  also, to change the
  pack.

Gab, or gob.  The mouth.  Gift of the gab; a facility
  of speech, nimble tongued eloquence.  To blow the gab;
  to confess, or peach.

Gab, or gob, string.  A bridle.

Gabby.  A foolish fellow.

Gad-so.  An exclamation said to be derived from the
  Italian word cazzo.

Gaff.  A fair.  The drop coves maced the joskins at the
  gaff; the ring-droppers cheated the countryman at the fair.

To gaff.  To game by tossing up halfpence.

Gag.  An instrument used chiefly by housebreakers and
  thieves, for propping open the mouth of a person robbed,
  thereby to prevent his calling out for assistance.

Gage.  A quart pot, or a pint; also a pipe.  Cant.

Gage, or fogus.  A pipe of tobacco.

GAGGERS.  High and Low.  Cheats, who by sham
  pretences, and wonderful stories of their sufferings, impose on
  the credulity of well meaning people.  See rum gagger.

GALIMAUFREY.  A hodgepodge made up of the remnants
  and scraps of the larder.

Gall.  His gall is not yet broken; a saying used in prisons
  of a man just brought in, who appears dejected.