Someone who lies, cheats, murders, rapes, steals, and or commits any sort of crime while claiming to be a religious follower/believer of Jesus.
Todd: I go to church every Sunday. I am such a good person, and I am faithful to Lord Christ and his teachings.
Frank: Didn't you rape that 12-year-old girl, and cheat on your wife while you robbed the prostitute?
Todd: Yeah, but I don't get your point.
Frank: You must be Catholic.
Todd: Precisely, but I still don't get you.