A person who plays video games, such as Call of Duty: Black Ops, and has a huge hussy fit when he is killed. The rager will often yell profound words at his television screen and blame things like lag, bad map, or hacks for his players demise. A nerd rager will also often promptly leave the game if he is killed too many times in a fashion that he calls "cheap kills". This is called a rage quit. Which is also accommodated by profound words yelled at the television screen.
Dyllon- "see Scott over there playing his video game, yelling? "
Keith- "yeah, he's a nerd rager.