Slang is, by definition, "the language of the rebel, the outlaw, the despised, the marginal, the young...the language of the city (Jonathon Green, _Cassell's Dictionary of Slang_)." So users shouldn't be surprised when using a site called Urban Dictionary that it mostly contains words that refer to sex, drugs, crime, violence, and other "inappropriate" behaviors. The key here is to teach kids about what these words are if/when the kids encounter them. Parents and educators should know about and use this site to their advantage--as a tool to learn what words are current among younger people, and as a teaching opportunity. Slang dictionaries are available in print, as well, and are equally as "offensive." Grab one off of your library's shelf and show a young person what it contains and *why* it contains what it does. Then, the curiosity is satisfied, and a dialogue has begun.