I love this "Ode to American English," and in fact sent it to my friends Ann and Chiara, who are both living abroad right now, far from the jukebox jive-talking whiz-bang hum of U.S. slang.
Unrelated: Can I just say that I hate it when Internet users (and no one actually SAYS this, they only POST it) refer to Americans as "US-ians" or "USA-ians." I mean, I guess I get that you're trying to make some deeply relevant statement about how we hijacked the name America and there are two continents full of people who legitimately could be called Americans also, blah blah blah, and I'm as liberal as the next blue stater, and yay, other countries but come on already!
This just makes the poster sound unbelievably pretentious and makes me roll my eyes. It's right up there with those people who refer to their husbands online as "DH" for "darling husband," or who use a screen name like "Ashleigh'sMommy."
It also would completely wreck such great song lyrics as "Knockin' me out with those American thighs" and "Dancin' with the ex-lead singer of the Clash, guns on the bar and his hands on your American ass."