I found a book at a car boot sale, on English English for Americans, i.e. if you're from the US, how to make yourself understood and avoid embarrasment in the UK. Written by an ex-pat Yank lady,it includes a big glossary, much of which was sent her by correspondents from all over the British Isles. It includes quite a few words and expressions I've never heard of, and I think one or two of her "pals" may have played a joke on her.

I'll try and find it out tonight.

Steve