Beef Rat Share definition Flag A rat filled to the brim with Taco Bell class A beef. Very edible. Very squish. I would like two number 9s, a number 9 large, and a beef rat. Beef Rat by NotAGoodPersontoSociety November 14, 2018 0 0 Get merch Get the Beef Rat mug. Buy Now — $32.95 See more merch