Poop Sauce Share definition Flag Diarrhea taking place in the middle of the night. Yo I had Poop Sauce last night and it was the worst night of my entire life i sauced for 15min straight. Poop Sauce by Mr.Sauce October 29, 2008 0 0 Get merch Get the Poop Sauce mug. Buy Now — $32.95 See more merch