knothead

== English == === Etymology === From knot +‎ head. === Noun === knothead (plural knotheads) (informal) A stupid or stubborn person. 1989, Mark Frost, David Lynch, Twin Peaks (television screenplay: episode 1) CATHERINE: With the pace we've set it'll still be months before the mill's bankrupt. I don't know if I can wait that long. Besides, there's always a chance my knothead husband may decide to take a peek at those dusty old books.