jitney

A small motor vehicle, such as a bus or van, that transports passengers on a route for a small fare.

A nickel.

a small bus or similar vehicle carrying passengers on a fixed route, used for public transport.

A five-cent piece; a nickel.

A small bus or minibus which typically operates service on a fixed route, sometimes scheduled.

An unlicensed taxi cab.

A shared-ride taxi.

A small coin, a nickel.

Very inexpensive.

this sense?) A fraudulent arrangement whereby a broker who has direct access to an exchange executes trades on behalf of a broker who doesn’t.