What are some good Appalachian "sayings" that is uniquely Appalachian?

My mother had saying she used a quite a bit for different things.

"That kid over there is always going, like the running gears of a katydid".

My father used to throw this in every now and again after working on a car, lawnmower and you get the point.

"That thing is running like a stripped ass ape"

No, I don't have any idea to the meanings or origins to either of those. There are countless others but I want to hear what everyone else has heard or picked up over the years.

Edit: I have thoroughly enjoyed reading the comments and have tried to respond to as many unique ones that I could, even giving some similar sayings(maybe local dialect?) that I have heard or remember.

A very, very popular one(The Lord willing and the creek/crick don't rise) is a very true one. My family had to drive through a "crick" no more than a few inches deep and 10 or 12 feet wide to get home or leave. If it came a "gulley warsher" rain, we were stuck at home or trying to get home.

This has been really great and brought back a lot of memories. I've been gone 20 years now from those mountains.