An Online gaming clan, officially called Knights of Zeratul, was created during the good old days of Diablo. Originaly Kevin and Zack guild (the founding members) once it started to expand into different games (mainly Star Craft) the name was changed. Most of the current members play World of Warcraft.
In Kevin's basement 1997 (ish)*
Kevin: Wanna make a guild
Zack: All right. Lets call it KZ, for Kevin and Zack guild.
Kevin: OK! Now we can take over the world
Zack: The world ours yet?
Kevin: No....Wanna play diablo?
*These events may or may not of happened, all that is certain, is that Kevin and Zack guild was renammed for reason unknown (they probly wanted to be cool)