hitchhiker

noun5

1. •
   A person or thing that hitchhikes.

   • It's a rough trip no matter how you come, for these washboard roads will loosen up even brandnew cars pretty fast; and hitchhikers always find the going bad. — 1948
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. •
   (informal) A bur that attaches and clings to clothing, or a bur-bearing plant.
4. •
   An advertisement at the end of a program.

   • […] and networks have taken steps to modify or eliminate the bunching of spots and commercials between programs which results from the use of hitchhikers and cowcatchers. — 1945
5. •
   A dance move in which the dancer mimics the motions of someone thumbing a ride.