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90s Slang You Should Know


[kap-er] /ˈkæp ər/
a person or thing that caps.
Also called topper. something that completes or adds to what has preceded it:
The capper was that we didn't know each other after all.
Slang. an informer, especially for gamblers.
Slang. a by-bidder at an auction.
Origin of capper
1350-1400 (for sense “cap maker”); 1580-90 (for def 1); Middle English; see cap1, -er1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for capper
Contemporary Examples
Historical Examples
  • I had made up my mind to pursue this matter of capper to the very end; the thing fascinated me, and I could not let it alone.

    Dead Man's Love Tom Gallon
  • Rawlinson reported that capper with two brigades was still in Ghent.

    1914 John French, Viscount of Ypres
  • Then he called to Mrs. capper, and gave her a brief explanation of Milly's swoon.

    Name and Fame Adeline Sergeant
  • As a capper he digs up that envelop, to show her there needn't be any hitch in the program.

    Shorty McCabe Sewell Ford
  • capper stood framed in the lighted doorway, looking out at him, but I saw that he appeared to have no weapon.

    Dead Man's Love Tom Gallon
  • It is amazing the many who were willing to play the part of capper in this game.

    Watch Yourself Go By Al. G. Field
  • But nobody came, although she sat up watching and waiting for many hours after Mrs. capper had betaken herself to her bed.

    Name and Fame Adeline Sergeant
Slang definitions & phrases for capper



  1. A huckster's or professional gambler's helper, who attracts clients; shill (1750s+)
  2. The climax or end of something (1940s+)
  3. A story, joke, etc, that outdoes another one (1940s+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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