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"goom" is slang used for magic mushrooms.
"those gooms fucked with my head and i thought the aliens were coming."

"My parents were PISSED when i came home on gooms. They weren't mad that i was tripping on gooms, they were mad because i ate the dog."
by itssean July 07, 2009
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A slang term for magic mushrooms
Other terms: goomies, goomers, goomed-out, gooming-balls.
1. "Bro......... I'm totally gooming-balls right now.....

2. "Me too man, these gooms are fuckin nuts.
by Joey........ October 27, 2013
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One excelling in stupidity
Jeff was giving his dog a chocolate tea bag bandit mask when it bit his nuts off - what a fucking goom.
by Jimmy Goomface August 10, 2007
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Guy 1: Dude, you should check out Slipknot, they're my favorite metal band ever!
Guy 2: GOOM
by Cataclysmical January 05, 2010
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