Maybe Facebook should change its name to Facebleep. According to Reppler, a service that scours Facebook for naughty words, nearly half of all profiles have profanities on their walls. Of those, about four-fifths of them sport profanities that originate from one of their friends. The f-word and its various derivations is the most popular obscenity, followed by the s-word and a word that originated as a term for a female dog. (AllFacebook.com)