mushroom stamp 

the act of pushing the tip of your own cock into your anus - just slightly - thereby inking your tip - and then imprinting the mushroom image onto said victim

If you don't get off of my lawn, I'm gonna mushroom stamp all you little bastards!

mushroom stamp by Snarfley McFookenhagen December 23, 2006

mushroom headed piss stump 

Another term for a penis

She hogged down on my mushroom headed piss stump.

mushroom headed piss stump by Ben daiho May 25, 2008

mushroom smashing 

The homosexual act of rubbing the tip of ones penis against the tip of another man's penis for the purpose of sexual pleasure.

Ken took Ben home after meeting at The Manhole. They were so aroused in each others presence that they whiped out their erect cocks and started mushroom smashing until ken unleashed his man paste all over Ben's hairy chest.

mushroom smashing by Systolic May 11, 2006

mushroom toe 

When the head of a man's penis is clearly visible through his pants. The male equivalent of a camel toe.

Dude, you need some thicker shorts. I can totally see your mushroom toe.

mushroom toe by Tempered Taurus September 25, 2013

mushroom hat 

A hat that makes your head look like a dick.

Jules is hearing her Mushroom Hat. What a dickhead!

mushroom hat by TotallyNotMark April 12, 2021

mushroom cap 

an asshole, dickhead

dude don't be such a mushroom cap

mushroom cap by exytsygns January 3, 2008

Mushroom Tip 

When the tip of a man or shemale's penis looks like the tip of a mushroom

Me and my girl haven't seen each other in forever so I've been jacking off a lot. Last night she pulled down my pants and when she saw my dick she sang the Mario theme, it looked like a Mushroom Tip.

Mushroom Tip by ShittyTitty September 8, 2016