Comes from a mispronunciation of the words "get good", meaning basically "learn how to do it" "get
better" and is commonly used in a majority of online videogame community in a negative meaning, to mock someone who's having problems with some section of a game. In Dark Souls community is a commonly used phrase, mostly by
elitist shitheads who think they're gods made flesh just because they can
play this game in a certain way.