A Jamestown porridge is the act of vomiting into a womans ass, adding kraft dinner mix, inserting your penis and jizzing profusesly. The sloppy contents of this anal soup should have an anema effect, causing her to shit uncontrollably. You and your damsel then invite some of your friends over, for a nice steamy lunch.
"Mmm, lawdy. I sure could go for some Jamestown porridge right about now you guise."
A Leper Supreme is the act of having sex with a leper (one who has leprosy) through new orifices, created by mashing soft, rotten parts of their skin with your penis. After banging several new glory holes into your unfortunate friend, one finishes the Leper Supreme by dipping a nacho chip into a gooey part of their head and eating it.