Dictionary

capper

noun cap·per \ˈka-pər\

Definition of CAPPER

1
:  one that caps: as
a :  a device that fits caps on bottles
b :  finale, climax, clincher
2
:  a lure or decoy especially in an illicit or questionable activity :  shill
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Examples of CAPPER

  1. <the capper to the campaign rally was an appearance by the candidate himself>
  2. <she was smart, she was pretty, but here's the capper—she was kind, unlike the other girls>

First Known Use of CAPPER

1587

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