katzernfresser Share definition Flag German slur for an Italian person that eats cats or as the Italians call them, "roof rabbits". Of course he likes the chinese buffet, he is a katzernfresser. katzernfresser by Littlejerk October 17, 2010 0 0 Get merch Get the katzernfresser mug. Buy Now — $32.95 See more merch