Plumb CrazyOne worth keeping
“He's plumb crazy as a peach-orchard boar.”
Someone whose behavior makes no sense at all, wild and unpredictable.
In the same vein
All Plumb Crazy →Completely, cheerfully unhinged.
The worst kind of crazy — the kind that lives where it shouldn't.
Almost all there, but that one brick matters.
Packed full of nuts, just like the Christmas dessert.
Southern for 'that man is unwell,' said with love and judgment.
Running in circles, bouncing off walls, no plan at all.