deadhead

noun

1. ☆ a person using a free ticket to get into a show, ride a train, etc.
2. ☆ a vehicle traveling, as to a terminal, without cargo or passengers
3. ☆ a log floating on end, sometimes fully submerged
4. ☆ Slang a stupid or boring person

transitive verb

1. to drive (a vehicle) as a deadhead
2. to remove withered flowers from (a plant), as to encourage further blooming

intransitive verb

1. to use free tickets
2. to make a trip without passengers or cargo

adverb