The Buttslutinator is part of a dungeon that's either been added or is going to be added on Dhaal, I think. It was only in Uveto as a placeholder and it said so when you entered it in the flash version.
It's in Kiro's Rescue Quest. although it's optional. You can also buy one from Dr. Po, if you take too long, though it still Bad Ends you. Or it did in the Flash, anyway.