When an individual is being stupid for some indiscernible reason.
“Bruh I got brainitis, I thought four times four was twelve for a sec.”
by Eggmun May 19, 2022
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When your brain swells up because you are big brain.
I have a serious case of brainitis e=mc^2
by brainitis September 11, 2019
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When there is something so important to you, you think about it day and night, wiling that something to be the very best that it can be.
I have Sisters Sippin’ Tea 2019 Reunion brainitis!
by JoyAlways December 20, 2018
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