The New Oxford American Dictionary declared "Unfriend" the word of the year. It beat out hashtag, netbook and sexting, among other nominated words.
Oxford defines the verb as: "To remove someone as a 'friend' on a social networking site such as Facebook." I think they should include offline usage, too, like when you stop calling people back entirely or leave people at rest stops on road trips. What, you guys don't do that? [CNN]