A C.U.N.T, which stands for Can't Understand Nerd Tendencies, is a group of people (mostly female) who are non-gamers or do not have "nerdy" interests. They fill the air with their incessant ravings about video games and gamers. They are usually in a relationship with a gamer (who never hid their gaming or nerdy interests) whom they constantly nag, criticize, and badmouth for it.
Josh: "Hey Dude, why weren't you online last night?"
Adam: "I'm sorry, man. The Cunt was harping about me playing so much so I took a night off."
"That C.U.N.T. has the nerve to complain about me playing my new game. She said she wanted to spend time together. I turned it off to do so and ended up watching Twilight..."
"My cunt of a boyfriend broke up with me because I declined his invite to hang out at the mall in favor of playing Zelda...."