[novacole]

As a black Philadelphian I have to disagree. I use Jawn all the time (in non professional all settings). And so does every other black person I know. Most of the black people I know are working class and they from my estimation use Jawn the most.

Now to proper usages. It’s true you can use Jawn as a replacement for “thing”. However, you can also you it (as bad as it sounds) for women. So a common phase is “Did you get the Jawn from the Jawn?” Meaning “did you get the thing from the woman?” Or “The Jawn told me to come up to the Jawn down the street” meaning “the woman told me to go to the place down the street”. Succinctly Jawn is a person, place, thing or woman. There is no way you can overstate the usage of Jawn. I’ve used it and heard it my entire life from almost everyone I know.

[gist]

Zero usage that I remember having grown up very close to a suburb but still in the city. I literally would not even know how to pronounce this 'jawn'. I do remember 'jit' and until a few years ago was not even aware that it's not apparently used elsewhere.