A shorter version of the infamous phrase: gg autogrammatica
Saying gg (good game) in this sort of manner indicates a complete domination of an opponent.
It is only to be used in that specific situation. A very useful alternative to saying "we completely owned you guys."
Mostly seen in the gaming world.
Term was coined by the famous DotA player, mugrakers.
Team 1: K you guys win I guess... gg
Team 2: 16-0, gg auto
Team 1: ...