While poking around on a UK radio-controlled model airplane newsgroup I ran into the term, "chav." Would one of you British folk care to enlighten this US ignoramus?
In New Earth, the first episode of the second season of the new Doctor Who, Cassandra possesses Rose's body, looks in the mirror, and says "Oh my god, I'm a chav!" - proof that the word survives until the year five billion and twenty-three.