mushroom tap 

to forcebaly smack someone on the forehead with a penis, thuse leaving a mushroom-shaped wealt on face

dude i so mushroom tapped that chick

mushroom tap by faroramzes October 29, 2003

mushroom stamp 

slapping a penis on top of someones forehead or on a car window

we gotta get out of here i just mushroom stamped that cops car

that guy parked so close to me i mushroom stamped his window

mushroom stamp by ass master January 18, 2003

Mushroom Princess 

Its what they call girls who like a sausage in the calzone...

I brought a guy back from the club last night, He made me a mushroom princess.

Mushroom Princess by MindFuck69 November 11, 2010

mushroom head 

another word for penis or bell endlike a mushroom

1)look at my mushroom head its huge!
2)search google images mushroom head for more details

mushroom head by alex October 22, 2004

mushroom-shaped welt 

A mark left on someone's flesh resulting from being slapped by a penis. The impact of thebulbous glans penis and narrower shaft leaves a mark with a shape much like that of the fruiting body of a mushroom.

Your mother wasn't very careful with her teeth when she was sucking my wang, so I pulled my dong out of her mouth and beat her on the face with it, leaving several mushroom-shaped welts that developed into bruises that were clearly visible when she picked you up from school later that day.

mushroom-shaped welt by Baller-Ass Nigga June 17, 2004

mushroom cap 

When the head of the penis is a lot larger the the shaft. Resulting in what looks like the top of a mushroom.

Charlie soon realized that condoms felt odd on his mushroom cap.

mushroom cap by Uncle J J May 27, 2005

mushroom punch 

The act of punching someone in the face with the tip of your dick (the mushroom). Most effective while fully erect and pulling back on the head to create tension and releasing. This will leave a "mushroom print" if done correctly.

The hooker who was blowing me kept looking up so i gave her a mushroom punch.

mushroom punch by LiquidShadow8 April 24, 2006