Addictionary Lists Words Not in the Dictionary, but Should Be

"Everyone has words in their vocabulary that aren't really words--language that everyone around you probably understands but that throws off your spell-check every time. Maybe it comes from popular culture, or maybe you make it up yourself. Either way, you should submit your weird words to Addictionary, a Web service that keeps track of language that we use every day but that isn't in any other dictionary and likely will never be."

http://www.appscout.com/2008/10/addictionary_lists_words_not_i_1.php