A house pet, generally a dog or cat, that manifests a coarse, brutal, filthy, or degraded nature when the owner's back is turned, or when guests are present.
Ow! Your fucking cat was hiding in my coat! Give me a call when you've taken that beastimal to the taxidermist.
Normal Person: “Actually, furry porn depicts anthropomorphs, which are fictional human(anthro) animals. By definition anthropomorphism is completely unrelated to bestiality or zoophilia.”