deadheading

To admit to a performance without charge.

To travel as a deadhead, or non-paying passenger.

To drive an empty vehicle.

To send (a person or message) for free.

To remove spent or dead blossoms from a plant.

The removal of dead flowers from a plant in order to encourage the growth of new ones, and to prevent the production of seeds.

The driving of an unladen vehicle, such as a bus with no passengers, in order to take it from one place to another.