Jargon: special words or expressions that are used by a particular profession or group and are difficult for others to understand.
Intentionally including material that is difficult to understand usually isn’t a good strategy.
The only way I would think to include something like this is if you intend to spend significant time explaining it, using it as a key hook to the story.
“You better not never tell nobody but God” isn’t a model of clarity, but The Color Purple pulled it off as a beginning. (Then again, you are probably not Alice Walker.)