poop joke Share definition Flag Type of joke made by those with a peculiar fixation on feces and colonic function. A joke which has a particular emphasis on feces or colonic function. Sam continued to post his poop jokes on urbandictionary.com, but they weren't really slang terms. poop joke by somegoof January 20, 2005 0 0 Get merch Get the poop joke mug. Buy Now — $32.95 See more merch