In Norwegian, a lot of animal names are [distinctive feature/familiar look-alike]-animal constructions. E.g. a skunk is a "stink animal", a tardigrade is a "bear animal", a sloth is a "lazy animal", shellfish are "shell animals", arthropods are "joint animals", and mammals are "suckle animals". #NorwayFacts
When we think that something is completely crazy we say that it's "hole in the head."

