A mutated mushroom is what an ugly dick looks like, the head is the mushroom and the shaft is the root
Daniel’s dick looks like a mutated mushroom!!”
by Lmao u succ May 4, 2018
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A slow incremental change in meaning or purpose of a definition.
The meaning of the word marriage has really undergone a serious definition mutation over the last 15 years. It no longer describes a traditional arrangement.

Some youth really dance with the English language and produce definition mutation. It's almost like a different dialect.
by Ontological June 24, 2018
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When your skin starts bubbling, bumps explode on your face and your head gets longer.
OMG! Johnny is having a Myles Mutations, HUS SKIN IS BUBBLING UP!!!
by Nugget tip January 16, 2020
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The act of nature imposed on a human mid coitus, transitioning genes into a primal form, essentially transforming the host into a beastial form.

(The words "orgasmic mutation" was created by me and if it weren't for my messed up friends I'd never have a definition)
"Yo! Did you hear about Brian?"

"No. What happened?"

"He was fucking and had an orgasmic mutation!"
by D-Street1321 January 3, 2022
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