I was amused to check my news feed yesterday to find the headline "Why do some Americanisms irritate people?" A click of the mouse took me to the BBC and a short (and rather gentler than expected) history of just how annoying we Americans are with our knack for creating slang so pervasive that there was just no stomping it out.
It goes both ways, my friends. And not just the Beatles and the Rolling Stones either. The British sensibility, especially in terms of comedy, is so deeply intrenched in American society these days that most of us don't even realize it. Beyond American Idol and Big Brother, both of them imported across the pond, there are very few modern sitcoms that do not owe a greater debt to Basil Fawlty than they do to Lucy Ricardo.
It goes both ways and in currents so deep that many of us don't realize they're there until we dig around a bit.