turdmegeddon Share definition Flag the belief that the world will end because of millions upon millions of turds falling upon us. hey man, some crazy guy just ran up to me and said "watch out for turdmegeddon!!". turdmegeddon by explodingcows54 May 9, 2018 0 0 Get merch Get the turdmegeddon mug. Buy Now — $32.95 See more merch