What's the funniest surname?

There was one time when my housemate told me this story of her while she was at work. A guy came into their office to pick-up some documents. He asked the guy's name and he replied, "I'm John." She asked for the guy's surname so that she can record it for future reference. The guy handed out his identification card to her and told her, "Here is my id, please look at my surname." When my friend saw his surname, she almost laugh and said "Ah.." The guy's surname was Pecpec. In our native language, pekpek means the girl's genitals.

I have come across a German name "Brüllochs". In English would it would be Screaming bull. In English there is another name "Knatchbull" It is a very old English name. I don't know what the Knatch part means but the bull part is self explanitary. There is a Ukrainian name "Pechinka" meaning liver in English. I have also come across a Jewish name "Wanzel" meaning bedbug if translated to English. It is interesting isn't it how people come by their names.