I believe this is a very loose translation of the dictionary definitions for foolish talk, humorous old man.

Anyone a bit silly became a gaffer, and, ergo, some silly thing or act was gaff. Popped up in SE Mass around 1984.

Example: Did you see that guy arguing for an hour over the lightsaber fights in _Star Wars_ and how in _Empire_ they cut through the railings, and in _Jedi_ they didn't? What a gaffer!

Have you ever see a thing called a Chick Tract? How utterly Gaff!

@gaft:= to steal something or someone

gaft, gafted, gafting...etc.

Example: I gafted that tomato from her stash, and threw at her face.

@gag a maggot off a gutwagon:= Something that stinks.

Example: His odor is so bad it would gag a maggot off a gutwagon.

@gaggle:= Washington DC expression; an informal news conference without television cameras.

Example: Presidential Press Secretary Ari Fletcher has instituted a 9 am daily gaggle in the White House Press Office.

@gagswitch:= The fleshy bit at the back of your throat that makes you go kyack! when you stick things too far into your mouth.

Example: Kyack! Nope I can't eat a carrot in one bite!

@gah roo:= An interjection used in in place of what? or huh?

Example: Joe: Your epidermis is showing.

Jon: Gah roo?

@gah:= Exclamation used as realization dawns that a disaster is about to or has just occurred.

Example: Gah! I forgot to backup up the code before I changed it!

@gahcked:= to be overly excited or adament about something

Example: they were all gahcked over the fact that they had won the football game

@gairmmin:= gairmmin is the opposite of the word awesome (used in a teenagers language)

If something is bad

Example: you got a bad mark in school. you think. 'GAIRMMIN, I SHOULD'VE STUDIED!'

@Gaish:= Describing a thing which is gay. Derived from gay-ish

Example: His hot pink belly shirt is so gaish.

@gak:= A subjective description of the feeling of the mucus that develops in the back of one's throat after drinking a glass of orange juice followed by brushing one's teeth.

Extra thick milkshakes can often produce the same results.

Example: Gak! I just can't sing right after breakfast.

@galamble:= (noun) A long speech about something you'd rather not listen to. Ususally you have no part in the conversation.

(verb) To give an excessively long boring speech.

Example: The teacher's galamble today was on the unrecursive enumerableness of Goedel's Theorem.

@galded or gaulded:= Refers to irritation where legs rub against each other, as in upper thighs.

Example: He had been working hard in the field all day and sweated profusely and became gaulded.

@galumph:= To gallop triumphantly. From Jabberwocky by Lewis Carroll

Example: He was so pleased with his efforts at the game, he galumphed the entire way home.

@gamalian:= One well-versed in using games to get what she wants. Not upfront.

Example: Jeez, did she have to get all gamalian on me. She could have said it straight.

@gamasteron:= Aa planet of a solar system whose existence is certain, but not identified exactly yet.

Example: There are a lot of gamasterons in our galaxy.

She is like a gamasteron in that you never know for sure where she is.

@gamooks:= rather unordinary persons with little awareness of the world around them.

Example: I don't want this sculpture to fall into the hands of just any gamooks, God knows what they'd do with it.

@gamorgeous:= Used to describe something that is to die for' beautiful...more than gorgeous and extremely glamourous.

Example: She was wearing a new dress that was absolutely gamorgeous.

@gangsta:= A real thug, livin' the streets the way that the hip-hop lifestyle would suggest.

Example: Chris is the only real gangsta I know.

@gank:= A moment of public embarrassment.

Example: Someone trips walking into a pub--that's gank. Tripping coming out is different.

@gank:= To attack without provocation, to lash out for no good reason.

Example: Jeez, I barely set foot in the place when Chris ganked me. I wuzn't gonna boost nothin' this time.

@gank:= To screw something up or have it fall short of expectations.

Example: 1. That basketball player really ganked his shot.