To remove someone as a "friend" on a social networking site such as Facebook."Unfriend" was named the "2009 Word of the Year" by the New Oxford American Dictionary.
How do you unfriend someone on Facebook? Here's how: Click to go to the person's profile, go all the way to the bottom of the left column, you should see a link that says "Remove From Friends." Please note: It's considered a serious breach of a friendship to unfriend someone, and if you decide you want to be friends with this person again, you will have to send a new friend request.