GM

The right definition of the word "GM" is Game Moderator.
Noobs often confuse this with Game Master, even though everyone could be a game master.

Player 1: "Do you know what GM means?"
Player 2: "Game Master, Doh!"
Player 1: "Wrong noob!, it means Game Moderator."

Player A: "Stop harassing me or I will call a Game Master"
Player B: "It's Game Moderator, you noob!"

GM

GM Are Cars that cant drive...

All GM cars are lemons

gm

giggling mildly, used instead of "lol" because people rarley laugh out loud while reading texts or im's.

I was gm when I saw her face.

GM

Also manufacturers of Vauxhall, Holden, Isuzu, Daewoo and Suzuki.....all synonyms of dogshit and bumsweat.

GM

Stands for Generic Mafia. A sweet halo clan.

GM kicks ass.

gm

An abbreviation for group message

Yo man, you typed that message in the wrong gm

GMS

Abbreviation for "Guilty Mom Syndrome," a wonderfully flexible term which refers to the syndrome of mothers of young children feeling guilty about their inadequacies and trying to blame the world, but also to onlookers who wonder if that guilt would not be better addressed if the mothers would take responsibility for their own unhappiness.

~ "Doreen just bought Honey Bee another boatload of toys. Now she complains she can't pay the phone bill."
~ "Chalk it up to a very bad case of GMS."