A hitchhiker is an item that is placed in a geocache, and has instructions to travel to other caches.
Sometimes they have logbooks attached so you can log their travels.
A Travel Bug is an example of a hitchhiker
Placed a hitchhiker in the last cache i found, i sure hope it travels the world!
by outlive December 17, 2006
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when a dude is thinking of another dude while sticking his thumb up his ass.
i was hitchhiking in the shower.
by locksmith April 2, 2008
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To stick a thumb in the anus while jerking off.
I was jerking off and decided to hitchhike to speed things up.
by Mirtcs January 19, 2012
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When you're lying next to your partner (preferably when they are sleeping but awake works just as well) adjust your hand into the hitchhiker position (thumb up) and launch your thumb directly into their butthole. After insertion is complete, make sure to thank them for the ride ;)
While in the spooning position, Rafaela was sleeping and Sebastian gave her the midnight hitchhiker in order to wake her up so he could get another ride aka sit on his dick.
by Socratittiess February 5, 2010
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1. When someone sticks their thumb up their own ass or someone else's ass.
2. To sit on one's thumb
I walked into my apartment the other day and caught my roommates performing dirtroad hitchhikers on eachother.
by T. Danza October 15, 2010
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The act of sticking ones thumb into the anal area of another person or perpetrator.
"The pit bull would not let go of my arm so I gave it the chocolate hitchhiker"

"My buddy had me in a headlock so I gave him the chocolate hitchhiker."

Friend: "what smells like shit?"
Me: "well my girl was being a bitch so I gave her the chocolate hitchhiker".
by Smozi1014 January 7, 2020
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When a man receives an unsolicited anal probing from another man's thumb on the sporting field. Named after John Hopoate, an Australian NRL player.
Damn, we would have won if our captain hadn't been sent off for giving their defence a Hopoate Hitchhiker.
by toosoon July 12, 2009
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