Definition: [noun] A person who collects, transports, or distributes illicit money, especially for the purpose of bribery, extortion, or the making of other improper payments.
Definition: [noun] An assistant to a police detective, most commonly in the British police force.
Definition: [noun] A bookmaker.
Definition: [noun] A travelling salesman.
Definition: [noun] A caddy.
Definition: [noun] An officer assigned to travel with the president and carry the "nuclear football".