After eating only a chili diet for at least two days, you shit (which will be close to diarrhea) in a condom and put it in the freezer. Once frozen, you insert this condom into the girl's anus where it "boils." In the doggie position, the shit will start seeping out of her anus and drip into her vagina. There you will use this mixture as lubricant while you fuck her from behind.
I just performed the Utica Boiler on this bitch and she fucking loved it.
My dog just Utica Boiled this hairless chihuahua and he almost died.