A sexual act of placing peanut butter on the penis, then proceeding to engage in anal intercourse followed by forcing the female participant to eat the end product resulting in a Reece's Pheces Penis Butter Sandbitch.
When, upon arrival onto a Brontosaur's saddle comes many people who have or are currently pooping or have poop butts. This now creates the Poo Butter Paradox, also known as the Poo Butter's Platform.
Man 1: "woah this is crazsysr"
Man 2: " yeah man this is what its like on the Poo Butter's Platform"
When the captain of a sailing vessel takes his peg leg and shoves it in his first mate's buttle, what oozes out is called Captain's butter. Sometimes used in seafood dishes.