h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

I always thought that grockle was the Devon term whilst in Cornwall it was Emmets. It certainly was when in the early 70's when I used to be visiting my grandparents in Penzance.

You could often see car stickers of 'Emmets out' - Emmet being the Cornish word for ant. The analogy of ants and tourists being fairly obvious

emmets is cornish - I've never heard of grockle, but maybe I live at the wrong end of the county!

I know this may be a bit off topic but I heard another word of like meaning. However this term refers typically to those American tourists who seem to think they can see all of Europe in one day and spend five minutes glancing at each area of natural beauty or astounding archetecture before rushing somewhere else and completely missing the point.

This word is: Merkin.

I beleive this began as a purposeful mispronounciation of "American" which ironically ridicules the way in which said tourists cannot seem to pronounce the place names of anywhere they visit. I think it may have stuck when it was revealed that "Merkin" is also another name for a pubic wig!
No offence is meant to Americans by postinf this but I thought it was an interesting example. There is no known colloqialism for this term but it seems to be common among fans of Terry Pratchett for some reason (strange considering that I don't think he has ever used it himself.)