Definitions
1.nounA person who collects, transports, or distributes illicit money, especially for the purpose of bribery, extortion, or the making of other improper payments.
2.nounAn assistant to a police detective, most commonly in the British police force.
3.nounA bookmaker.
4.nounA travelling salesman.
5.nounA caddy.
6.nounAn officer assigned to travel with the president and carry the "nuclear football".