In the USA, "rude" means "impolite" but impolite means that you don't have good manners-you didn't say "please", "thank you" or "you're welcome" when you should have.

Here rude doesn't mean "nasty".

For what it's worth, Michael, I don't recognize the two examples that you gave-'Eskimo Nell' and 'The Ball of Kirriemuir'.

I suppose they might be found on this forum or elsewhere on the Internet...