towel mushroom 

a mushroom on a towel; most likely caused by excessive masturbating and ejaculating on the towel.

Son, why is there a towel mushroom on my towel?

towel mushroom by skullwise April 19, 2022

give you the mushroom 

Putting both penis and balls far into the vagina

Yeah baby I'm going to give you the mushroom later when were alone together

give you the mushroom by !vandev November 6, 2017

collarless mushroom 

In other words, a circumcised penis

Let me play with your collarless mushroom.

collarless mushroom by exusn May 29, 2005

Shitake Mushroom 

1. A japanese mushroom

2. A substitute to the S word when teachers are around

Person 1: OMG i accidently stabbed you

Person 2: Shiiiii (teacher walks by) shitake mushroom

Shitake Mushroom by Naan & Laur September 4, 2005

baby mushroom 

a term used to describe a very small penis.

"Did you see how small that guy's weiner was?"
"Yeah man, he had a baby mushroom!"

baby mushroom by Tifany December 9, 2007

Flying Mushroom Stamp 

The act of forcing someone to kneel down (have them stand if they are much shorter than you), then removing all your clothes, and getting to a good distance. Once you have achieved the desired distance, you then run and jump, swinging your hips causing the head of your penis to slap them in the face, leaving a bright red imprint shaped like a mushroom.

Please exercise extreme caution when performing the Flying Mushroom Stamp. Serious injury may (and often will) occur.

I performed the Flying Mushroom Stamp on that bitch, dawg!

Flying Mushroom Stamp by Kaj Darkwind May 16, 2010

Mad Cap Mushroom

A mushroom cultivated by Night Goblins, which, when brewed into a beer, is one of the most intoxicating subtances not known to man. The beer is often force-fed to unfortunate gobbos 3-4 hours before a battle. He is then given a huge ball on the end of a chain. His mates than hold on VERY tightly to him (sitting on the gobbo when required. They know that if he starts swinging that ball ANYWHERE near them, they're going to meet Gork (and possibly Mork). When the unfortunate enemy aproaches, he is given a push in their general direction, and the best is hoped for.

"Gork! Mork! Waaagh!!!"

Mad Cap Mushroom by Warhammer Nerd March 24, 2004