This is so fascinating to me.
We washed windows and dishes. My husband used to say "warshed", he was born in OK. My Mom would tell him WASHED, and he just looked at her like she was crazy.
Flat as a pancake.
We used to say "Pee like a Russian Racehorse" also.
It was raining cats and dogs.
We still have "swamp coolers" and sometimes your house would be like a swamp with water running down the kitchen cabinets.
We have arm pits.
We also have Chicken Fried Steak, which I wondered why when it didn't have chicken in it.
We had bags or sacks. If you asked for a poke you would probably get poked.
"Working cattle" to me was putting them in a schute and dehorning, branding, cutting them, and giving shots. To my uncle who lived about an hours drive from us it meant using a horse and rounding them up to move form one area to another.
Gravel roads were covered with gravel.
Dirt roads did not have gravel on them, they were dirt.