sockdolager

A hard hit, a knockout or finishing blow, or conclusive argument.

He’ll come off as badly as a feller I once hit a sledge hammer lick over the head—a real sogdolloger.

There is but one ‘sogdollager’ in the universe, and that is in Lake Oswego.

Something large or otherwise exceptional; a whopper.

Hey, Al, thought I'd call you from the locker room out here at Green Hills. Just made a sockdolager hole in one! A hole in one, Al! (etc.)

A combination of two hooks which close upon each other, by means of a spring, as soon as the fish bites.