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Definition of capper

capper

/ˈkæp.ər/
cap · per
Plural:cappers
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capper Lexical Profile

capper Game Scores & Validity

• noun

1

A device, machine, or worker that places caps or lids on bottles, jars, or other containers.

Example

"The homebrewer used a manual bottle capper to seal fifty bottles of freshly fermented ale."

2

North American A climactic, crowning, or decisive event, remark, or joke that brings a situation or performance to a memorable conclusion.

Example

"Winning the championship in overtime was the perfect capper to an already historic season."

3

A person who habitually lies, exaggerates, or makes false boasts (slang).

Example

"Everyone in the group chat knew he was a capper as soon as he claimed to own a private jet."

4

North American A person employed by a gambler, auctioneer, or confidence trickster as a decoy to lure victims or drive up bids (slang).

Example

"The investigator realized that the enthusiastic bidder in the front row was actually a capper working for the auction house."

Synonyms
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Antonyms
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• Rhymes for capper

• Nearby Words

capmaker
capo
capoeira
capper
cappuccino
caprese
capri

Cite this Entry

Wordmom. (2026). Definition of Capper. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/capper
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