Trapper

Noun

1. One who traps animals; one who makes a business of trapping animals, for their pelts, meat, etc.
2. A worker (usually a child) who opens and shuts a door in a gallery or level of a mine, to manage ventilation and access.
3. An ornamental covering for a horse. See trapping and caparison.
4. A drug dealer.
5. A performer of trap music.