gotchie gravy Share definition Flag The liquid shit stain in your underwear, especially after flurching or a bad bout of diarrhea! If you've got diarrhea and don't make it to the John in time, you run the risk of getting some gotchie gravy! gotchie gravy by Jon-Miester November 11, 2008 0 0 Get merch Get the gotchie gravy mug. Buy Now — $32.95 See more merch