Gaff: flat, house. Gafless: homeless
Source: LS3

gaffer: high-ranking or important person. In the past gaffer has referred to: boss, foreman, overseer, or even the father of a family.
Sources: LS2, SL,ODS

gairm: an illness, disease
Source: LS2

gaiters(obsolete): people able to afford fine footwear, and who expect those who cannot to defer to them
Source: IHBY

Gammy-anded. A left-handed person(although the usual term for that is "cack-handed.") Gammy can also refer to a clumsy right hander..
Source: LS1, GS, Moloney

ganger: the foreman
Source: JML

Ganja: Black English word for marijuana or grass
Source: LS4, BUABS

Gannets: originally referred to a sea bird, then to a greedy seaman, because the bird was known for its voracious habits. Hearty eaters, often children, may be referred to as "gannet-gobs."
Source: SL

Gansey.. I wanna gansey fer de la: I want a jersey for the boy. Spiegl suggests that this usage reflects a "jocular confusion" of the Channel Islands of Jersey and Guernsey, ending up "gansey." But "gansey"  is common in Ireland. Cf. Frank McCourt's recording of Angela's Ashes.
Source: LS1

ganzee, to have a: to take a look
Source: JML

Garlic pusher: an Italian. Responses to this particular slur range from enraged to indifferent.
Source: SL

Gate: a bicycle. Twin gate: a tandem bicycle
Source: LS2

gawmless(Lancashire): idiotic, stupid, slow, dull. Cf. Liverpool " gormless." In Lancashire, "to gawm" means to take notice or to understand.  Hence a "gawmless" person is an idiot.
Source: GLD

Gawpin. Ee was gawpin wid eyes like atpegs (hatpegs). He looked surprised. In Lancashire "to gawp" means to stare vacantly with open mouth.
Source: LS1

Gazumped: extremely weary. It can also mean getting the raw end of a business agreement,  for instance a jump in the price of a house after a lower price has been agreed upon.
Source: LS3

GBH: grievous bodily harm
Source: LS4

Gear, de gear: Excellent; suitable; satisfactory. Cf. French de rigeur.  Shaw has suggested that the term may be connected with shipping and the stowing of gear in engine storerooms and forepeaks, and that the term may have originated in India.
Source: LS1, Shaw II

Gear: cannabis
Source: LS4

Gee gees: horse racing track
Source: LS3

Gegs, ther: very good, excellent, splendid; mangled form of "ther gear," which means the same thing.
Source: LS2

General Balzup: mythical authoritarian held responsible for any disorganization, defeat, or failure.
Source: LS2

gerk-butty: a slice of plain, uncoated bread, perhaps a common jail fare once.
Source: LS2

Gerl. Me gerl. My wife.
Source: LS1

Gerraway!: An expression of wonder or disbelief
Source: LS2

Gerund grinder: schoolteacher
Source: LS2

get a belt off someone, to: to criticize or find fault with someone
Source: ATHIA

get done to: to be beaten up in a fight
Source: LS2

Get der bullet, to: to get fired, sacked
Source: LS3

get shot of someone, to: to fire them, release them from duty, to dismiss
Source: SI

getting the legs of someone(in soccer): outracing them in a play
Source: GTH

Getting down someone's ear-o(ear-hole): feeding someone a particular point of view
Source: LTB

Getting the verbals: drawing a great deal of negative feedback for something one has said or done.
Source: SL

Getting off at Edge Hill: coitus interruptus. Spiegl notes that Edge Hill is the next to the last station before Lime Street, the terminus of the London-Liverpool line.
Source: LS1

Gezzunder: a chamber pot, which "goes under" someplace
Source: SL

Gid: a check for money
Source: LS4

giggle, to look a bit of a: to look ridiculous
Source: JML

gill, a: half a pint of bitter beer
Source: LS1

Gimme some( or gizzer)...I should like to buy...
Source: LS1

gin and oranges, it's all: this is saying that it's matter of indifference, or it's "all the same to me."
Source: SI

gink(obsolete): a bad person
Source: A

gip(as in "giving me gip"): physical pain or discomfort. Also see "gyp."
Source: SL

gip-butty: bread dipped in gippo or gravy
Source: LS2

Gippo: gravy
Source: LS2

Giro: money, or income
Source:LS4

Gisalite. Could you oblige me with a match, please?
Source: LS1

Gissome...Please serve us with...
Source: LS1

Git: character,person, sometimes derogatory
Source: ANS

give cheek to: to be insolent or uncooperative with one's superiors; children were continually warned not to do this
Source: SL

give over: stop it
Source: LS2

give us a squirt, wack: pass the vinegar (in chippies or fish and chip shops)
Source: LS2

Give someone his coffee: to get the better of a brawl with someone, to give a come-uppance to someone.
Source: SHAW II

Give us some. Bring me a large portion.
Source: LS1

Glad and sorry: hire-purchase or installment buying.  Cf. the "never-never."
Source: Shaw II

Glam: rip off or demolish, as in" to glam the face off someone."
Similar usages: to cop the face off someone, to rack the face off someone
Source: LTB

Glam: glamour, glamorous
Source: SL

glammed up: dressed and made up to the nines.
Source: SL

Glannies: glass marbles
Source: LS2

glassing: wounding with a purposely smashed drinking-glass--often in a pub--in the face or neck.
Source: LS4

glory hole: generally, the below decks area of a ship, in some instances the privy.
Glory hole can also mean any room or cupboard in a house where oddments are stored.
Sources: DS, SL

Gnashers: false teeth
Source: LS2

Gnats' piss(or gnat's pee): Cider, near beer, weak tea, or any drink considered to be lacking in strength.
Source: LS2, ODMS

go 'ard astern, to: to give up the argument; to admit defeat and beat a hasty retreat
Source: LS2

Go crook: to accuse someone of wrong-doing
Source: SL

Go-along, a: a chastising blow to a troublesome child
Source: Shaw II

go on the stand, to: Before unionization and the Labour Exchange, dock workers (actually ship repairmen) would take their tools with them and gather in one area, hoping to be picked for work.
Source: NYM

Goat, to act the: to be on the fritz, or mechanically dysfunctional
For instance, a computer might be "acting the goat," or something else might be "acting the giddy goat."  Acting the goat can also mean to play the fool.
Source: SL

Gob: the mouth. Shaw says that the word of Irish origin.
In Lancashire gob can mean a lump of anything, a large piece of meat, a mouthful. etc.
Source: LS1, LS3, GLD, ML

gob-ache: toothache
Source: SL

Gob-organ: a mouth organ or harmonica
Source: LS2, MMWB

gob-wad: plug of chewing tobacco
Source: LS2

Gobber: a swallower of incriminating evidence
Source: LS4

gobbing: talking incessantly
Source: SL

gobbling: oral Sex from a prostitute
Source: SI

Gobshite: bantering remark, the implication being that the person referred to is "full of shit."
The term is often used endearingly
Source: DVSL, ANS

Gobsmacked: surprised
Source: LS4

God stiffen it: an exasperated curse on something
Source: Shaw ML

God-forbids(rhyming): kids
Source: Shaw II

gods, the: the highest seats in a theatre, the place of mythical nosebleeds
Source: SL

Godzone: a contraction of "God's Own Country," another name for Australia
Source: SL

Gogs or goggles, or specky-gogs: spectacles
Snout-gogs: pince-nez
Source:LS2, Moloney

goggle box: television
Source: SL

Goin' Bismarck: Liverpudlian for going beserk. A variation on this is "goin beresk."
Source: LS4

going over the top: in soccer, making a move intended to hurt an opposing player while one pretends to be playing the ball
Source: GTH

Gold nugget: a profitable spell of Saturday work(dockers), which would no doubt involve "ovies," or overtime pay.
Source: LS1, Moloney

golly: a children's game
Source: DBAPOI

Golly: a wad of phlegm
Source: LS2

golly-wacker: a spitter
Source: PM

gom, to(obsolete): to report someone to the police. The person in on a job who was keeping watch would call "Gom" when when there was danger.
Source: A

Gom: a fool
Source: SHAW II

gom(obsolete): policeman
Source: UF

Gong: a chamber-pot. Bong ther gong: to accidentally kick the chamber-pot. A gong is also a medal.
Source: LS2

goobie: a booger, a nose picking
Source: SL

Good Ship Neverbudge, the:  mythical ship manned by the various dry land sailors in navy uniforms, for instance the Netherfield Road contingent.
Source: TMD

Good Thing: a promiscuous woman
Source: LS3

Good-oh: a term of enthusiastic approval
Source: LS2

Goolies: testicles
Sources: LS2, LS3

Goosed: tired out, exhausted; also, spoiled or messed up.
Source: LS2

Goosgog: gooseberries(the fruit), no longer popular. The usual Lancashire word is "goosegob."
Sources: DS.

goosing, to be: to be having sex
Source: SL

Gordon Bennett!(usually Cockney): exclamation to indicate amazement
Source: SL

Gormless: stupid, as in "totally gormless."  Cf. the Lancashire word "gawmless."
Source: SL

Gorped at: stared at
Source: SHAW II

Gosh custard: an exclamation
Source: SL

Goss-eyed(or gozzy-eyed): partially sighted, dazed and visually disoriented
Source: Partridge

got rabies: said of  a foul-tempered, quarrelsome person
Source: LS2

got the luck of soft Joe: very lucky indeed
Source: LS2

got ther gob-shakes: said of a persistent talker, especially a nagging woman
Source: LS2

got piles like seaweed: said of a restless, fidgety person
Source: LS2

Got the needle, got the spike, got the (h)ump, gorra cob on: annoyed
Source: LS3

gotchies: underpants
Source: SL

goz, a: a look at something
Source: SL

Gozzie: a contraceptive. Brand name: "Gossamer."
Source: LS2

gozzified: confused, disoriented, usually from drink
Source: SL

Grace Kelly (rhyming):telly, television
Source: LS3

Graft: a job, work, labor. It can also refer to tedious or tiring work
Sources: LS2, LS3, ALS, DS

grafting, to be: to be employed.  It can also mean to be out stealing, however, as well as kiting, or checkbook-bankcard fraud.
Source: LS3, SL, LS4

grand, a: one thousand pounds
Source: LS1

granny gore: a scold, a crotchety old person
Source: DBAPOI

graspers: hands
Source: SL

Grass, to : to give information to the police
Source: LS4

Grasser: a police informant; a stool pigeon
Source: LS2

Graving dock: in earlier history, a ship's keel was shaped or graved out of a tree.
Source: SL

Green Goddess: name for the Liverpool city trams or streetcars. These days ,the phrase refers to fire engines.
Source: SL, SCHUR

Greenfly: aphis or plant louse
Source: OED

Gregory Peck(rhyming): the neck
Source: LS3

Grid: drink
Source: LS3

grid fishing: a hand-eye coordination task for the young.  It involved using a string and a hook or something sticky to retrieve coins, currency, and other liftable treasures which someone had let fall through a grating.
Source: MM

Griff: News, information.  Duff-griff is false information.
Source: LS2

Griffin. Let's give de fellers de griffin. Let us warn our colleagues.
Source: LS1

Grind: sexual intercourse
Source: LS2

grizzle: to complain, also to resist or to be rebellious
Source: LS2, NYM

groceries, going for one's: going home to eat
Source: LS3

Groin: ring
Source:LS3

Grotty: grotesque, ugly
Source: LS2

grouse job, a: an excellent job
Source; SL, DS

Growler: lunch tin. Growler can also refer to a back bog, or privy,i.e., an outside toilet.
In underworld parlance, a "growler" is a nonce or sexual offender, usually a child-abuser, segregated for his own safety in prison.  Cf. Lancashire  verb "to grawl: which means to molest a young lady
Source: LS4, ML, SL

Grug screw: sexual intercourse during the dinner hour. Cf. on this list "doing a matinee."
Source: SL

gump stew(obsolete): chicken broth
Source: A

Gun: among drug users, a hypodermic syringe
Source: LS4

Guy, to do a: perform a vanishing act
Source: Shaw III

gyp: pain caused by a physical condition
Source: SL

gypsy's tartan: the name for the red mottling legs could get from being too close to a fireplace
Source: SL