A Catholic that does not live by the changes that were made in the the Church as a result of Vatican II. Most of the time they attend a Latin mass, the women wear dresses, don't eat meat on Friday, don't send their kids to public school, have loads of kids, say the rosary every day, say grace before and after meals and don't listen to modern music or use bad language. They come in varying degrees of weirdness. Some are just normal, well-behaved and modestly-dressed Catholics. Others, usually the ones that live in the middle of nowhere stick out. I could go on and on describing their various peculiarities but I think I covered all of the basics.
Girl: Who are those freakin' weird people over there in the long ass skirts? That's disgusting that they have more than 3 kids! They must be crazy! They need to get liberated! I'm sure they're judging us right now!
Traditional Catholic: Who's judging?
A woman that is curiously absent from work or school once a month. Which leads you to the conclusion that she must be turning into a wolf with the cycle of the moon. In reality, she is suffering from a much more common malady known as her period.
Me: Where is Professor Lupina? She misses class every waxing gibbous.
Hermione: Hmmmm. Maybe she's a werewoman.