DEADHEAD
deadhead
(noun) a train or bus or taxi traveling empty
deadhead
(noun) a nonenterprising person who is not paying his way; “the deadheads on the payroll should be eased out as fast as possible”
Source: WordNet® 3.1
Etymology
Noun
deadhead (plural deadheads)
A person either admitted to a theatrical or musical performance without charge, or paid to attend.
An employee of a transportation company, especially a pilot, traveling as a passenger for logistical reasons, for example to return home or travel to their next assignment.
Anyone traveling for free.
A train or truck moved between cities with no passengers or freight, in order to make it available for service.
A person staying at a lodging, such as a hotel or boarding house, without paying rent; freeloader.
A stupid or boring person; dullard.
A tree or tree branch fixed in the bottom of a river or other navigable body of water, partially submerged or rising nearly the surface, by which boats are sometimes pierced and sunk; snag.
(slang) Driftwood.
(slang) A fan of the rock band the Grateful Dead (usually Deadhead).
(slang) A zombie.
Verb
deadhead (third-person singular simple present deadheads, present participle deadheading, simple past and past participle deadheaded)
(transitive) To admit to a performance without charge.
(intransitive) To travel as a deadhead, or non-paying passenger.
(transitive, intransitive) To drive an empty vehicle.
(transitive) To send (a person or message) for free.
(transitive) To remove spent or dead blossoms from a plant.
Etymology
Noun
Deadhead (plural Deadheads)
(slang) A fan of the rock band The Grateful Dead.
Source: Wiktionary
Dead"head`, n.
1. One who receives free tickets for theaters, public conveyances,
etc. [Colloq. U. S.]
2. (Naut.)
Definition: A buoy. See under Dead, a.
Source: Webster’s Unabridged Dictionary 1913 Edition