For your edification...

The Management presents a short list of some actual place names in the United Kingdom of Great Britain and Northern Ireland, chosen for their propensity to sound rude when said with extra emphasis. As in
"I say, Nigel, you wouldn't happen to know where Bertram is, old sport?"
"I expect Bertie's down Wapping Old Stairs, if you catch my meaning, old bean."
"So soon? I'd heard he was on holiday, taking a turn up Ashby De La Zouch."

And so on. Try it at home with the following places:

• Slough
• Looe
• Bude
  
• Foulness Point (on Foulness Island)
• Pontypool
• Rutland
  
• Dorking
• Cockfosters