The Guy Living at Home
Apparently the Finnish are no strangers to guys who don’t leave their parents’ basements, as they have an entire term for them. Actually, their term — Peräkammarin poika — literally translates to “the boy who lives in the room at the back of the house.”
This is the bachelor who spends his life taking care of his parents’ house, even when they pass on and he’s still living there, alone. We have quite a few of those in America, too!