mushroom-bruise 

A bruise, in the shape of a mushroom, obtained by being slapped with a large penis or penis-like object.

"Dude, I can't believe you goin' out with the new girl from accounting!"
"I'm gonna mushroom-bruise her ass, just for you. Just watch -- she won't be sittin' straight for a week."

mushroom-bruise by Dharma Midget September 7, 2016

On your Mushroom 

When a girl wants your penis. "Mushroom" is the head of the penis.

Usually said by a friend, can be said about your self.

Example #1-Friend

Jim- Dude, shirlena is totally on your mushroom right now.
John- Man I know, its kinda scary.

Example #2-Your self

John- Shirlena was trying to get on my mushroom last night.
Jim- Did you let her get on your mushroom?
John-Yeaaa boy!

On your Mushroom by Evilbert October 22, 2009

mushroom dick 

as described by stormy daniels, the shape of President Donald Trump's genitals.

“I lay there," she wrote, "annoyed that I was getting fucked by a guy with Yeti pubes and a mushroom dick like the character in Mario Kart." -Stormy Daniels

mushroom dick by real610phillyhoe September 18, 2018

golden mushroom 

A sexual act in which a man strikes another human in the face with the head of his penis while in the act of urinating. Note: not to be confused with the golden mushroom the soup.

After my girlfriend cheated on me, Damion suggested I give her a golden mushroom.

golden mushroom by ruff54 December 14, 2009

Shitake Mushroom Grip

When a woman with very large hands cups your balls and her finger slides up your ass. Similar to a shocker on a woman. It makes your shit ache hence the name.

Cindy's hands were so large that she gave me the Shitake Mushroom Grip when we started to get it on.

Shitake Mushroom Grip by The Bored Mechanic December 18, 2009

visit the mushroom kingdom 

Partake in psychedelic mushrooms.

Holy shit with these I'm going to visit the Mushroom Kingdom.

visit the mushroom kingdom by Askur December 24, 2007

Northern mushroom 

Northern mushroom is a direct Cantonese translation of the phrase "buck goo," literally "north mushroom," which is often used in Hong Kong and Macau to refer to prostitutes (usually referring to those coming from Mainland China as the mainland is north of Hong Kong and Macau).

Those northern mushrooms are ugly.

Northern mushroom by jef2k85 February 27, 2010