A crustinator is a tool used for the farming of bum crust. It is like a bread knife in that regard. When acquiring one make sure it's not sharp, as that may hurt yout bumhole. It doesn'tjust have to be used for the farming of bum crust but make sure you clean it before using it for any other practices.
Person 1: Hey (Person 2) did you get your Crustinator yet, I really need to farm my crust, it has been accumulating for 1 1/2 years now!
Person 2: Yes, I did receive ityesterday, but I need too farm first, and remember to clean it for the best possible results!