Pork knife Share definition Flag 1. A word used to take place of the word penis. 2. A knife used to cut pork. Ha! his pork knife is only 2 inches long! Man, that pork knife is very sharp. Pork knife by Fetus Bomber November 4, 2004 0 0 Get merch Get the Pork knife mug. Buy Now — $32.95 See more merch