Grog.  Rum and water.  Grog was first introduced into the
  navy about the year 1740, by Admiral Vernon, to prevent
  the sailors intoxicating themselves with their allowance of
  rum, or spirits.  Groggy, or groggified; drunk.

Grog-Blossom.  A carbuncle, or pimple in the face, caused
  by drinking.

GROGGED. A grogged horse; a foundered horse.

GROGHAM.  A horse.  Cant.

GROPERS.  Blind men; also midwives.

Ground Sweat.  A grave.

Ground squirrel.  A hog, or pig.  Sea term.

Grub.  Victuals.  To grub; to dine.

Grub street.  A street near Moorfields, formerly the supposed
  habitation of many persons who wrote for the booksellers: 
  hence a Grub-street writer means a hackney author,
  who manufactures booss for the booksellers.

Grub street news.  Lying intelligence.

To GRUBSHITE.  To make foul or dirty.

Grumble.  To grumble in the gizzard; to murmur or repine. 
  He grumbled like a bear with a sore head.

GRUMBLETONIAN.  A discontented person; one who is always
  railing at the times or ministry.

Grunter.  A hog; to grunt; to groan, or complain of sickness.

Grunter’s gig.  A smoaked hog’s face.

Grunting peck.  Pork, bacon, or any kind of hog’s flesh.

GRUTS.  Tea.

Gudgeon.  One easily imposed on.  To gudgeon; to swallow
  the bait, or fall into a trap:  from the fish of that name,
  which is easily taken.

Gull.  A simple credulous fellow, easily cheated.

Gulled. Deceived, cheated, imposed on.

GULLGROPERS.  Usurers who lend money to the gamesters.

Gum.  Abusive language.  Come, let us have no more of
  your gum.

Gummy.  Clumsy:  particularly applied to the ancles of
  men or women, and the legs of horses.

Gumption, or rum gumption.  Docility, comprehension,
  capacity.

Gun.  He is in the gun; he is drunk:  perhaps from an allusion
  to a vessel called a gun, used for ale in the universities.

GUNDIGUTS.  A fat, pursy fellow.

Gunner’s daughter.  To kiss the gunner’s daughter; to
  be tied to a gun and flogged on the posteriors; a mode of
  punishing boys on board a ship of war.

Gunpowder.  An old Woman.  Cant.

Guts.  My great guts are ready to eat my little ones; my
  guts begin to think my throat’s cut; my guts curse my
  teeth:  all expressions signifying the party is extremely
  hungry.

Guts and garbage.  A very fat man or woman.  More
  guts than brains; a silly fellow.  He has plenty of guts, but
  no bowels:  said of a hard, merciless, unfeeling person.