To be honest, you'd think the Americans would have censored the word Fuddruckers, just in case, you know. They have very sensitive ears and they are, famous, a nation afraid of nipples. If NorKim wants to put the literal fear into the US, he doesn't need nukes, he just needs nipples. Battalions of nipples.
That said, many American surnames do sound like someone was trying to unrude a rude word. Bert Jankwanzy to marry Susan Smutsky Clitingle. I'm sure there's a blog somewhere that captures these from the local paper just-married sections (googles, yup, it's fish-in-a-barrel).
I did check and it turns out I did live near(ish) a Fuddruckers, though it was in the Foxwoods casino and I don't gamble. The only reason to head that way was for the endlessly entertaining pronunciation of Norwich.