mushroomhead 

A mallcore/mainstream industrial rock (not metal, you stupid faggots) band, often incorrectly stated as being the band that Slipknot ripped the mask gimmick off of. I don't really feel like delving into Mushroomhead's uninteresting history of mainstreamage, so I'll just give a bit of FYI on masks for metal bands and fake metal bands ripping them off... GWAR (real (yet admittedly a joke) metal band) started it. All these nu fucks are ripping THEM off and pointing fingers at each other. End.

Mushroomhead is as metal at Slipknot, which is as metal as a kid in Abercrombie & Fitch clothes.

mushroomhead by Chris Zewe September 22, 2005

mushroom stamp 

When a man slaps a woman on some part of her body with his member.

'Slap'
Her "what are you doing?"
Him "Giving you a mushroom stamp, bitch!"

mushroom stamp by mushroom stamper January 4, 2009

bottom mushroom 

Unflattering description of a very popular brand name, but the least respected product in the industry.

The (brand name of your choice) is the bottom mushroom of the automotive industry.

bottom mushroom by dattaway March 26, 2007

mushroom 

1. Computer industry term for a programming primadonna with no social skills.

2. One who prefers writing code and/or administrating servers from a dark closet, whom is only to be bothered when someone has shit to throw at them.

3. An asshat with technical prowess that makes them hard to fire.

He's a damn good Unix admin, but he's a bit of a mushroom. If you don't want a condescening answer, there'd better be a server fire.

mushroom by irritus December 1, 2004

mushroom Tattoo 

After acheiving climax by receiving oral sex the man pulls out his semi-flacid penis from her mouth and slaps it around her face. Leaving a mark in the shape of a mushroom.

Marlene give me a great blow job last night. When she finished swallowing I pulled it out and gave her a mushroom tattoo on the side of her face. You can still see it this morning

mushroom Tattoo by J..C..2 March 1, 2009

mushroom dick 

this is an circumcised penis

I'm so glad I have a mushroom dick because I never have to worry about getting a bad case of dick cheese.

mushroom dick by Karl Bakla July 6, 2005

MUSHROOM NUGGLIN 

To rub your penis on a females clitoris.

"That ho was all hot while I was mushroom nugglin."

MUSHROOM NUGGLIN by Michael Paterson January 1, 2007