ggnt 

Good game nice try. Usually an insult after heartily owning someone in a video game.

lmao ggnt, work on your rail and maybe youll kill me once.

ggnt by NegativeZero August 24, 2003

ggnt 

GGNT relates to "good game. nice try" usu. pertaining to games after owning somebody. However, "ggnt" can also pertain to RL situations such as getting shot down relationship-wise, getting dumped, getting low test scores, getting totally ignored, etc etc.

B1: Hey baby, how's about we go chillin' after work?
G1: (ignores B1)
B2: Ouch. GGNT dude.

ggnt by Nighthawkguy May 11, 2006

GGNT 

GGNT = Good Game, No Team. Said after a game or match (generally a loss) in which the individual player played well but received no support from their team.

Well I lead in kills, heals, objectives, flag captures and my team was running around in spawn blowing themselves up. GGNT.

GGNT by n4t3D0gg June 5, 2018