As I see it, the main problem is similar to 'You say tomahto, and I say
tomayto.'
In the UK we see an enormous amount of US media, films, TV, soaps etc. Our
TV is almost overpowered by it, and we soon get to know American slang, even
if we don't always use it.
On the other hand, the US only screens a very small percentage of UK films
and TV and so our contemporary slang is thus less familiar.

We know what a geek and a dork is, but we call them anoraks. ******** is not
good, but 'The dog's ********' is excellent !

I reckon the Freeflow Bermuda Scenery is the dog's ********!

Cheers,

Quilly