Definition of "capper" in English

noun

1. A device or person that applies caps, as to bullets or bottles.

2. A person that makes or sells caps.

3. A finale; something that is conclusively better, or "caps it all off".

4. (US, slang, dated) A by-bidder; a decoy for gamblers.

noun

1. (Internet slang) A person who records a television broadcast to their computer.

noun

1. (slang) A person who caps i.e. is inclined to untruth, a fibber.