Life is great so maybe have some mushrooms. A Mushroom boi refers to anyone who is subscribed to the popular YouTube channel called Mushroom Boi.
Guy:Hey man I’m a Mushroom Boi

Other guy:Wow that’s disgusting
by Notaboiloopdoop November 3, 2019
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A male with severe STDs, that his pee-pee looks like and smells like a rotten mushroom.
by Mushroom Boy May 10, 2022
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mushroom boy built his house while there was a war.
by mrsaaaaaaaaaaaaaa May 24, 2021
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