Here are some of my dad's expressions. (He was born on a farm in western Kentucky in 1899.)

It ain't worth a hoot [fart] in a whirlwind.

He don't know his ass [arse] from a hole in the ground.

…go around with his ass a-hangin' out. [… be extremely poor; penniless]

I'll jerk a knot in your tail! [I'll make you wish you hadn't done that!]

I'll take you down a notch! [ditto]

You'll be goin' around with your ass in a sling! [ditto]

… all tuckered out. [tired]

plumb [completely]

"I see," said the blind man. [I don't understand; or, you don't understand, do you?]

There's more than one way to skin a cat. [… to get the job done.]

What fer? Cat fur! [An impatient answer to a kid who asks too many questions.]

You'd lose your head if it wasn't sewed on. [said to a person who loses things]

"A naught's a naught [zero] 'n' a figger's a figger [figure]; all for the white man, none for the n****r." [describing how white storekeepers/landlords used to cheat their supposedly innumerate black customers/tenants, etc.]

a depression sandwich [cold leftover mashed potatoes on white bread, which he actually ate once in a while!]