mushroom-cap 

When two people are having anal sex and the person pitching pulls his penis out of the other one's rectum to find a large glob of santorum hanging from the end of his rod.

I probably should have expected it because we'd gone out drinking all night then eaten that greasy midnight pizza over at Cosmo's, but when we got back to the apartment she let me do anal on her and when I pulled out of her she left a big mushroom-cap hanging off the end of my rod.

mushroom-cap by Sock Sniffing Pervert July 6, 2012

mushroom bat 

when you slap a person in the face with your fat cock and balls

mike slapped eben in the forehead with his mushroom bat

mushroom bat by shownuff18 October 17, 2008

Mushroom Cordial 

An uncircumcised male mastrubates to the point of ejaculation. As he ejaculates, he pulls up the foreskin past the head of the penis and pinches it off so that all the semen is trapped within the foreskin.

She thought things were just getting started as she prepared to go down on her boyfriend, but to her surprise he had already prepared her a mushroom cordial.

Mushroom Cordial by The Slowest Zombie March 6, 2009

mushroom tattoo 

When you smash the end of your cock against the face of a deserving party(preferbably with your man berries resting in their best friends mouth) and leave the impring of a mushroom behind to show who's king.

God dammit, Samantha, Jessica takes it a lot deeper than you without gagging. You need to get your shit together, bitch.
*SLAP*
Now everyone's gunna know who's your pimp.

mushroom tattoo by Charlie Chuckles July 18, 2008

mushroom tattoo 

A hit by a penis with enough force that it leaves a mark in the shape of a mushroom

Katie was talking junk so i gave that whore the mushroom tattoo from hell right across her forehead.

mushroom tattoo by Sandy Fagina September 22, 2008

mushroom tatoo 

the mark on the cheek after a victim gets slapped with one's penis

Is Sarah having domestic troubles? i noticed her wearing a Mushroom Tatoo the other day.

mushroom tatoo by irontwo April 27, 2006

Mushroom Cloud 

1. The resulting cloud after a nuclear detonation.

2. To describe a person a person who is really, really mad.

Jeff's gonna lay a mushroom cloud when he finds out your bangin' his mom.

Mushroom Cloud by Blowfish February 16, 2006