When you pull your scrotum over your penis forming a mushroom like shape where your genetiles should be.

Sam, your mushroom is huge!!
by Sam Wampler October 23, 2007
Get the mushroom mug.
Also called mushroomin. Mushrooming is popular springtime activity amongst midwesterners (enthusiasts are also known as shroomers) where they traipse through heavily wooded areas in search of morel mushrooms. Mushrooms are harvested and taken home to be soaked in salt water to kill insect inhabitants, dredged in flour and fried.
Wanna go mushrooming?
We went mushroomin and found two 8 inchers.
Do you want to come to dinner? We found a mess of mushrooms.
by Your shoes get muddy December 28, 2016
Get the mushrooming mug.
A Mushroom is when you dip your cock in paint or ink, And slap someone in the face with it when they are passed out. Thus leaving a mushroom imprint on their face.
"At this party last night, Kim was the first to pass out, So I gave her a mushroom"
by CharlesVA August 5, 2006
Get the Mushroom mug.
Things that make you feel funny, and prolong orgasms
It kept coming and coming, must be the mushrooms.
by Spelunking Monkey February 10, 2003
Get the mushrooms mug.
something that always comes after a badger.
Badger! Badger! Badger! Badger! Badger! Badger!
Mushroom! Mushroom!
by mushroommushroom April 24, 2007
Get the mushroom mug.