Do I even really need to post in this thread?
Mine came from playing a certain video game by the name of Interstate '76, back when it was popular 'round the turn of the century. This was a sort've racing game, and the cars where exceptionally modifiable, by editing their configuration files. You could provide a flat image file, which the game would take and wrap into a car.
I did a little design work here and there, and was commissioned to build a car that had an Ass for a rear end. With central exhaust. And nitrous. And little did I know that if you programmed an excess of nitrous in, it would crash the game, and take everyone in that same map with you. Thus, I was born.
Nowadays, it just refers to my personality.