A fun guy. As in the plural of fungus or mushroom: fungi
I love hanging out with him... That guy is a mushroom!
by im.so.vegas March 20, 2008
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Mushrooms are an intense drug that grows from cow shit. Eat an eighth for an intense experience, make sure to have orange juice to wash it down. It takes about 45 minutes to kick in, and lasts about 6 hours. Your mind concerntrates on one subject for along time just trippin over it. You'll see alot of cool colors and designs wherever you go. There will be times where you laugh uncontrollably. Make sure to have lots of weed while shroomin, your body will absorb THC like no other. Some prefer the day, some prefer shroomin at night, I prefer both. After you're done, get a good nights rest.
==D.=====D.=======D==D=D.========D. Mushrooms field.
by Zabierek October 15, 2007
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Fungus.
An interesting poisoning occurs when certain types are ingested in large doses.
"Hey, I got some of those Portobello mushrooms for that pizza!"
by Angie Conte February 20, 2007
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a dick slap across the face of someone, leaving a red mark resembeling the head of a mushroom.
"i whipped that bitch out and gave 'er a mushroom"
by online daddy December 10, 2004
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When a dude slaps his dick in a chics face and leaves a mushroom imprint.
by Terri March 2, 2004
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The praise and dedication to mushrooms, be it real mushrooms or magic ones from Mario.

Practices of Mushroomism require life dedication to The Almighty Covan of Mushroomity, consuming extortionate amounts of multiple mushroom types, or just simply extreme procrastination playing any form of Mario game.
by DarkCandyDragon13 June 27, 2014
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When you pull your scrotum over your penis forming a mushroom like shape where your genetiles should be.

Sam, your mushroom is huge!!
by Sam Wampler October 23, 2007
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