Love it! I really enjoy language. Another one that makes me wince at the Olympics is 'rooting for your team'. In Australia rooting is a very coarse and yucky word for intercourse.
One query on the original post though- who says casinos are common in England? They absolutely are not. However, betting shops/bookmakers/bookies are, and they are places where you place bets (or have a punt) on the outcome of events, notably but not exclusively horse races. But punter is such a common term now, I dont think it has anything to do with gambling. It is often used to mean 'customer'.