The Collaborative International Dictionary
sockdologer
Sockdolager \Sock*dol"a*ger\, n. [A corruption of doxology.]
That which finishes or ends a matter; a settler; a poser, as a heavy blow, a conclusive answer, and the like.
(Angling) A combination of two hooks which close upon each other, by means of a spring, as soon as the fish bites.
Something unusually large. [Slang, U. S.]
Wiktionary
sockdologer
n. (alternative form of sockdolager English)