dont understand the mystery that is attributed to 'jawn' in this article. I have known a couple slang words in my own lifetime that have been used in an all purpose manner similar to 'jawn', the only real difference is that jawn manages to remain stable, most of these generic slangs fade out relatively quickly because they are pretty much meaningless...
Curious, what are the other all purpose slang words?
Thingy
Thing-Ummy_Bob
whatchmacallit