A term used in a sarcastic way to say say "nice going dumbass" or "nice one dipshit" when someone does something stupid or incorrectly. This word is often said in a trenchant manner and is pronounced "G-G-Eo".
Lax Bro 1: Gets hit in the face by the ball
Lax Bro 2: HA, ggEu
Coach: Nice one dumbass