Gears Of War Fanon:Godmode

Godmode, noun form godmoding or godmodding, is a term used in roleplay. To godmode is to ridiculously overpower a character or group of characters. A person who godmodes is occasionally called a godmoder.

About
Godmoding is frowned upon in roleplaying communities (ours included) for obvious reasons - it's unfair to other players. The godmoder essentially steals the game from them, much in the way that a Mary Sue steals the story from other characters.

Term Origin
The term originated with Id Software, which uses the key word "GOD" as an invincibility cheat in most of its games. Godmode is now a catch-all term in videogame circles (particularly multiplayer games) for when someone uses a cheat or hack to make themselves invulnerable. So godmoding is literally synonymous with cheating.