…belongs to the tiny (pop. 150) village of Fucking. Apparently the town name derives from a prominent 6th-century resident named "Focko", and the -ing signifies that the town is full of "Focko’s people." The street sign is routinely stolen, and replacing it is a big expense; nevertheless, the population has decided against changing the name.
There must be nothing quite like driving past a sign that simply says "Fucking." What makes the experience all the more surreal is the sign right underneath it, which features a picture of two children (!) and the motto "Please, not so fast" (!!)