Me and a friend were having a disscusion, and can't decide. We've looked it up and no one seems to have a solid answer. Feel free to disscuss.
EDIT: Not really getting the response I was hoping for, and not many people seem to know. Most guesses lead to a Lucas film called "THX 1138," but I was looking for other opinions. I've even heard it was cop talk for grave robbers. I'll leave this post in this category for another day or two, but may change it to get it on the main page if there isn't a larger responce.