I guess it could be worse if the phrase were "taking a piss on my wife"...
I once had a friend from England ask me very skeptically if you could really say someone was just "fucking with you" to mean someone was just joking around. So I guess it goes both ways.
I don't know why your friend didn't know that, but I would imagine most of us here in the UK would know what you meant by that. Not that I use it terribly often.
seems good if people in your occupation value geographical diversity in experiences (e.g., if you want to get a job as a travel photographer or international spy) ... not so useful if you're applying for software positions, though
As a proof of concept, this is interesting. For fields in which having experience in different cultures is important, the visual of the world map is really useful.
I could imagine someone applying for a teaching position using this résumé approach and impressing their potential employer.
For the next iteration, non-truncated location descriptions would be needed.
Embedding Google Maps in one's own site would probably be a better solution. It also helps if you have a bunch of reference points concentrated in the UK or in some other small region (you could have one world map and one UK map). That would make things clearer.