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.