Conversing with a friend recently, I mused, what could be the background to the expression “batshit insane”? My friend suggested that it might have something to do with having bats in the belfry. I then wondered what the Swedish equivalent of this expression would be.
In Swedish, you don’t have bats in the belfry. You have gnomes on the loft. Thus, “batshit insane” translates to tomtespillningstokig: gnome poop insane.