Shrinkage 

When ur penis shrinks during a cold pool

John just got out of the chilling pool, John has shrinkage

Shrinkage by The factuals April 7, 2019

shrinkage 

When the male penis get really small and shrinks in size because that dumbass is walkin in the freezing temperature, freezing his ass off. He should at least wear some layers if thats gonna happen everytime hes fuckin cold. No bitch wants to go near a fuckin penis thats had shrinkage!!!

Patrick should wear some damn pants if his penis is gonna get that small uz ain't nobody sleepin with that thing tonight!!

shrinkage by Fuckhead April 24, 2003

Shrinkage Boner 

When the scrotum shrinks to the point that it pushes the flacid penis up to appear as if it is a tiny boner, you have what is called, a shrinkage boner. Generally occurs during cold and/or wet circumstances, i.e. getting out of the ocean, pool, outdoor shower, etc.

I just got out of the pool and I totally have a shrinkage boner, want to see?

Shrinkage Boner by Tommy_Z December 13, 2012

Seasonal Shrinkage 

The proven theory that penises are smaller during winter and therefore cant be measured reliably during these months.

It was the first time she saw my penis, but due to seasonal shrinkage i made a bad impression.

Seasonal Shrinkage by Carl Pontusson August 15, 2017

epic shrinkage 

The act of having your wang shrunken to the size of a single testicle while playing water polo in two speedos.

After the three consecutive games in the championship, jonnyboy experienced epic shrinkage so great that he was too embarrassed to even get out of the pool.

epic shrinkage by zee ubernator April 21, 2009

ground shrinkage

1. When you see a big buck through your gun scope, but when you walk up to it on the ground, its antlers have "magically" shrunk.

2. Referring to when you see a hot girl from a distance, but find out that she's actually hideous close up.

you: "bro, I'm gonna go get that chick's number that just walked in. She looks FINE!"

minutes later....

your friend: "how'd it go?"
you: "really disappointing. When I got up to her, there was some major ground shrinkage so I bailed."

ground shrinkage by elchavito99 November 17, 2011

Positive Shrinkage

When someone is never not a dick but can have occasional outbursts of being nice, therefore decreasing how big of a dick they are

"Teresa legit just had positive shrinkage"

"No way bruh she always a big one"

Positive Shrinkage by JxkeSED January 29, 2016