Define Hitchhike Meaning

to get free rides by standing next to the road and signaling drivers

To stand on the side of the road and put your thumb up, in hope that someone will give you a free ride to wherever you need to go.

To travel by the solicitation of free rides

To the definition above. NO! HITCHHIKING IS NOT A GAY SEX ACT YOU RETARD!
Anyway, hitchhiking is the method of transport/lifestyle in which a person or group of people stand by a major motorway and wait for a free ride. It is risky but the likelihood of being raped and chopped into tiny bits is very small and overplayed by the fear-mongering media. In my opinion.

A hitchhiker is an individual who travels the universe without the use of a ship of their own. Popular hitchhikers are Arthur Dent and Ford Prefect. Contrary to popular belief, Zaphod Beeblebrox is not technically a hitchhiker because he owns a ship which he has stolen (see: heart of gold)

Also, it is a common misconception that a hitchhiker is someone who knows where his towel is. This fact is only true to froody (cool and together) hitchhikers, giving rise to the popular expression "that frood really knows where his towel is". Arthur Dent and Tricia McMillan are two examples of "froody" hitchhikers

One who knows where his or her towel is.

A being, human or otherwise, that randomly asks strangers for rides in transportation devices when in need of such a service. Their destination can vary, parts of the galaxy, parts of America, the important places mostly. Most are fearless, yet stupid and reckless.

one whose primary mode of travel is hitchhiking, or (usually free) rides from motorists on the highway

Someone who knows where their towel is.

While pleasing a girl, to stick your thumb out like a hitchhiker and plug it up her vagina. Very simple yet effective.