Have you ever gone to a new city and had people continuously use local slang to reference events, places, or even people? Well that can all stop with the help of City Dictionary, which is basically a slang dictionary for local information. If you want to appear in the know; then CityDictionary.com is for you! And because the site is wiki-based if you find a city that doesn’t have a lot of the local data published you can signup and add your own!