Try Our Apps


Supposedly vs. Supposably


[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. 2015.
Cite This Source
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.
Cite This Source

Word of the Day

Difficulty index for capper

Few English speakers likely know this word

Word Value for capper

Scrabble Words With Friends

Nearby words for capper