When you're about to eat out someone's ass, you spread their ass cheeks, exposing yourself to their full moon, and you throw back your head and let out a howl.
You know how Rigby would like to start the night?
By werewolfing a butthole.
Dr. Werewolf is a noun, not a pronoun to describe the actions of a medicinal clinic that performs malpractice on any and all of its patients resulting in but not limited to extensive hair growth, beady eyes, lycanthropy, blood-loss, and immunity to Twilight endangerment.
Dr. Werewolf is in no way, shape, or form poisonous however exposure to it or Strychnine will cause death.