Maarken
A Maarken is a man who moves in without asking. He eats all your snacks, takes over your couch, and claims your pets as his own. He doesn't know when to leave and won't until you're screaming at him.
My Maarken cousin came over and ate my entire candy stash. He didn't even say thanks.
He took over my couch and didn't leave for a whole weekend. I was stuck on the floor.
He took my dog for walks and now my dog thinks he's my brother.