[ sok-dol-uh-jer ]
/ sɒkˈdɒl ə dʒər /

noun Older Slang.

something unusually large, heavy, etc.
a decisive reply, argument, etc.
a heavy, finishing blow: His right jab is a real sockdolager.

Origin of sockdolager

1820–30, Americanism; sock2 + -dolager, of uncertain origin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sockdolager

  • And then the big news broke–the Sockdolager had been found–and there was a stampede that went clear to the peaks.

    Wunpost|Dane Coolidge
  • The fight for the Sockdolager Mine was on and Wunpost led off up the canyon with a swagger.

    Wunpost|Dane Coolidge
  • She followed along behind him, and already in her thoughts she was the owner of the Sockdolager Mine.

    Wunpost|Dane Coolidge