A pathetic attempt by two or more people to fight over the internet, usually while playing a video game. Since they cannot harm each-other physically, they attempt to harm each-other emotionally with name-calling, excessive swearing, and trying to act tough. Sometimes it is amusing and other times simply pathetic. Sometimes these 'fights' can last for over 30 minutes and serve no purpose other that to annoy everyone in the game/chatroom.
Nerd 1: omg fuking haxker noob.
Nerd 2: lolz u wish nub Ill pwn ur ass enyday
Nerd 1: yeah right btch least my mom aint a hairy ass slut.
Nerd 2: too bad you cant do anything to her with ur neddle d1ck lolz!
Nerd 1: whatever n00b Id fkin rape u at (insert overplayed fps shooter) anyday idiot u suck azz.
Nerd 3: hey everyone, its a NERD FIGHT!!!