I was born and raised in a small town. My Grandpa's family lived in that small town, so that makes me at least the fourth generation to live there. John also grew up in a small town and was at least the third generation of his family to live there. Over the years, we have learned and used several words and phrases that may need a translation for folks who "aren't from around here".
A park = A parking spot
The grocery = The grocery store
It's coming up a cloud = It's going to rain/storm
Dinner = Lunch
Supper = Dinner
I'm fixing to... = I'm about to...
Devil's beating his wife = It's raining and the sun is also out
Bless your/his/her/their heart = Could be a statement of compassion or condescension
Might could = Might be able to
Ruint = Ruined
I'm surely forgetting others. Can you think of any that you use or used when you lived in a small town?