Deli Mustard Share definition Flag The act of shitting and pissing on someone's chest while they are sleeping, and rubbing it around That asshole pissed me off, so i gave him some DELI MUSTARD Deli Mustard by i like pussy May 20, 2006 0 0 Get merch Get the Deli Mustard mug. Buy Now — $32.95 See more merch