(Noun) To anally fist a woman with one's thumb extended fully up, as if hitchhiking.*

*(The main difference between this and other 'definitions' of this term is that with a true 'Hitchhiker' the fist and upright thumb must be fully inserted. This is not a 'Shocker'.)
'Goddamn, dude, are you going to give me a hitchhiker or what? I can't get off on your weak-ass shockers.'
by Dr Bishop August 10, 2021
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Immediately following the act of anal sex. One discovers fecal matter on the tip of one's penis.
Dude!! While fucking Stacy in her poop shoot I picked up a hitchhiker!!
by Skippyandpete November 5, 2020
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Hitchhiker:

To masturbate while your hand is numb, to give the sensation that someone else is pleasuring you, while driving a vehicle.
On the way home from work last night I grabbed myself a quick hitchhiker
by Ryedawg II September 21, 2009
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When you are with a female and you are giving her oral and you realize that she would rather rub one off herself. You proceed to allow her to rub one off while you extend your thumb and stick it in the vagina while she is rubbing so that you can feel all the goodness during her orgasm.
As I was giving my girl oral, I realized that she would prefer The Hitchhiker so I proceeded to give her a thumb up for joy.
by cskIcemancsk July 30, 2009
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When you borrow your friend's shorts/pants after he had just jerked-off in them. You are now harboring a "hitchhiker"! You then go home to your wife/gf and do the dirty, 9 months later you have a kid fathered by none other than... Your best friend!
The Hitchhiker
by G Money 44 June 24, 2011
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A thumb in either the anal or vaginal orifice while in the doggiestyle position.
I might have married the bitch if she had been down with the hitchhiker.
by John Clever March 20, 2003
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n.: (slang) a small nugget of fecal matter attached to the hindquarters of an animal such as a cat or dog; especially common among long-haired species.

syn: dingleberry
"Quick, get Muffins off of the new duvet! He has a hitchhiker on his butt!"
by EmmyFoofoo May 6, 2008
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