gg means "good
game." Its often used at the end of rounds in games like Day of Defeat, Counter Strike, Empire Earth, and other multiplayer online games.
Even
people from countries that dont speak
english use gg at the end of games. For those of you guys who use it and dont speak english....
gg = "bien joue" (jouer?) en francais
gg = "Gut Spiel" (gutes?) ein Deutsch
gg = "juego bueno" en español
....and thats about all the other languages i know