Gming Edit Meaning

1.

Using gmail's instant message/chat script.

I was gming him all day since I couldn't download aim on the public computer.

See gmail, aim, msn, im, iming, instant messaging, google

2.

Game Mastering (in a roleplaying game). Aka DMing (Dungeon Mastering)

I've been GMing GURPS for the past few years.

We need a new D&D Dungeon Master here, but they are all GMing other games.

See rpg, roleplaying, games, dm, gm