n. 诱骗者, 帽商, 封口机

[建] 封口机, 压盖机

Capper \Cap"per\, n.
1. One whose business is to make or sell caps.

2. A by-bidder; a decoy for gamblers. [Slang, U. S.]

3. An instrument for applying a percussion cap to a gun or
cartridge.