noun

1. A person who collects, transports, or distributes illicit money, especially for the purpose of bribery, extortion, or the making of other improper payments.

2. An assistant to a police detective, most commonly in the British police force.

3. A bookmaker.

4. A travelling salesman.

5. A caddy.

6. An officer assigned to travel with the president and carry the "nuclear football".