Double Barrel Shit Share definition Flag When you defecate in your pants and the fecal matter sprays out both pant legs. Dude, I had the worst diarrhea last night, and I totally did a double barrel shit. Double Barrel Shit by Lil_Bird414 April 28, 2022 0 0 Get merch Get the Double Barrel Shit mug. Buy Now — $32.95 See more merch