Imagine the situation when we're trying to talk about yourself to someone in more-or-less formal style. I mean, that's not very formal, but nevertheless we can't use AAVE or something similar. For instance, when a tutor asks one of their students to talk about themselves. Could they say:
I'm Mike and I currently live in one-horse town near New-York.
I'm not sure about if the one-horse town is acceptable? When we can use that phrase?