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.

Nearby words

  1. capped elbow,
  2. capped hock,
  3. capped pawn,
  4. cappella,
  5. cappelletti,
  6. capping,
  7. capping fee,
  8. cappuccino,
  9. capra,
  10. capra, frank

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 Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for capper