When a member of the “son” gang acts out of line in a somewhat retard way.
Willa said to watch the vampire diaries. That’s Tism.
by Alpha Son February 3, 2021
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One who suffers from idiocy
Yo, he was such a tism
by ThatTismRaq August 1, 2020
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A guy that hurts your brain from how autistic he is.
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A guy that is so autistic it hurts your brain or is called Matt
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Another way of saying that you have autism.
Yea bro, I got the ‘tism.
by malachai the mail guy August 2, 2023
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That which is sprayed over a keyboard when certain people read fan fiction of Sonic the Hedgehog being fucked by a choo choo train.
Guy 1: Why is this library computer keyboard so sticky!?

Guy 2: Check the search history...

Guy 1: The last thing searched was "Sonic and the Steam Engine IX."

Guy 2: Quick! Wash your hands-- that's tism jism!
by Jack Atrophy August 11, 2022
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Having an orgasmic experience via over stimulation.
Got some tism' sprinkles lastnight... shit was weird.
by Ennerney dwink? September 15, 2023
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