There
really is a mountain called Wank, in Germany. It's in the Bavarian Alps, near Garmisch-Partenkirchen. It has a cable car, the Wankbahn, which takes people almost all the way to the top. Near the peak, there is an inn called the Wankhaus which was built in 1911 that allows people to spend the night.
This may not seem amusing to US readers, but believe me, it's funny if you are English or have spent any time in England!
There are plenty of people called Wank in the USA, but I have never, ever, heard of anyone of that name in the UK. I expect Chai will have something entirely justified to say about that last remark...