Hitchhiker

Noun

1. A person or thing that hitchhikes.
2. An item attached to a travel bug and hidden in a geocache to be found and transported to other caches or around the world.
3. A dance move in which the dancer mimics the motions of someone thumbing a ride.
4. A bur that attaches and clings to clothing, or a bur-bearing plant.
5. An advertisement at the end of a programme.