A person who plays video games A LOT. Usually they have no job, live with their parents, and spend the majority of the time playing it.
A lot of Game Nerds try to change the definition of the word 'game nerd' to someone who knows a lot about videos games, but they are just embarassed to embrace the fact that their only hobby is clicking buttons.
One of the biggest game nerds I know is named jose.
Person: Hey, wanna play foot ball?
Game Nerd: NOOOO, I ALMOST HAVE A SPY PLANE ON BLACK OPS.
Person: No life game nerd.
freindless nerds that have nothing else to do because they were so smart doing their homework (and some1 elses) rly fast. that now they dont have anything better to do then sit on the old comp (or new comp) and waiste their life playing games and "marrying" other ppl and killing n00bs just because their life sucks and the only place they can go 2 is the computer for fun
sum dood "hey man, that homework was H-A-R-D HARD!"
nerd "no it wasnt! I finished it just in time to play some rune scape and i got to lvl 45!!!"
sum dood "GAME NERD GET A LIFE"
nerd " i dont have 1 ;("
sum dood " THEN FIND ONE AND GET OFF THE COMPUTER FOR ONCE"