You should see slang from other languages. In Vietnamese, they use 'dc' a lot. I could joke and say Washington DC. They also say '9 day' (good day), But it is harder to translate when people use slang in their language

Sometimes they use 'j' instead of an "i" too or say 'nhug' instead of 'nhung' not including the 'n' in those kinds of words. Also in Spanish they use slang and put 'k' instead of 'que'.
Slang and intentional misspellings makes people look uneducated, agreed?
Also, are you guys talking about this website when you say Urban Dictionary?:
http://www.urbandictionary.com/