I don't use the term in every day speech, either. It's kind of assumed that all Christians are "born again", otherwise it's a complete waste of time them reading John 3.
I do understand that it has some connotations in the USA that seem to be absent over here, though.
I remember the phrase "born again" first became popular in the 70s (I think President Carter used it of himself). It was intended to distinguish between those who had the Holy Spirit in them, and re-born as a new creation, as opposed to people who simply claimed to be Christians and may even attend church (usually what would be considered a "dead" church by those claiming to be BA--I won't name any specifics).
I never use the phrase myself either. "Christian" doesn't need an adjective--labels create barriers.