A mythical penis that from going flaccid to erect shrinks rather than grow, apparently due to retracting into the body, possibly from shame or fear.
I was excited, his dick looked pretty big flaccid... but then it turned out he was a shrinker.
by MasterVidallis June 22, 2016
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A shrinker is when a Male gets turned off to the point that his pecker shrinks to one thousandth of the original size
I got a shrinker the first time I watched furry yaoi.
by RETARDO CHAIR July 29, 2019
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1. noun, The penis as it leaves it's state of erection when the owner of the penis does not want it to. For opposites, see The Surpriser Riser.

2. proper noun, The pharmecutical (sp) company that makes medicine to reduce erections; the anti-viagra.
1. "Damn you shrinker! GET BACK UP THERE!"

2. "I can't walk. I need to take some The Shrinker Pills."
by Carson Lynch July 13, 2006
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A guy that seems awfully attractive at first, but who's attractiveness seems to dwindle the better you know him. Basically someone who grows downwards in desirability. Disappointing, really disappointing. It's not even like funny anymore!
Jem, tell me about last weekend with coffee guy...
Turns out he doesn't even like Lany!
So, he was fit wasn't he?
No he's a shrinker...
by love from the convent February 1, 2019
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An individual that has aged to the point that they are no longer growing, but in fact shrinking.
My 90 year old neighbor is a shrinker. My parents are shrinkers.
by Cyanna February 4, 2010
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A woman that is ugly, bitchy, harpy, shrewish, or has any other unattractive characteristic that makes her sexually undesirable to a man. Said of a woman that temporarily kills sexual desire because of physical or personality traits that do not a man want to have her.
Joe: "Kate is a Boner Shrinker."
Alex: "Yeah, she ain't very pretty."
Joe: "Not just that, but she is a complete bitch. That is what I meant."
by skidale September 20, 2008
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A pair of pajamas so unattractive (for example: baggy flannel pajamas) that they make the male penis shrivel back inside, preventing an erection from occurring.
Yo girl, I was just ready to get my freak on until you changed into those ugly ass dink shrinkers.
by BigAsh&LJ November 8, 2013
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