When your brain is incapable of absorbing knowledge/Repeating already known knowledge
Teacher: What is the answer to number 1?

Student: Uhh...

Teacher: We learnt this last month and I made sure you understood. How do you not know this?

Student :Sorry, I have Wet Paper Towel Brain today just give me minute.

Teacher: Ok we'll come back to you later.
by De Queen May 18, 2023
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The guilt that comes with leaving your city for a more affluent area after college, despite the best attempts of your professors and others to prevent it.
Paul: "I had this crazy dream last night. I was on trial for planning to move to Chicago, but the jury was made up of my professors. When the judge asked for the verdict, one of them stood up and said, "We have no verdict. We're just extremely dissappointed in him."

Bob: "Sounds like you have a serious case of brain drain guilt bro."
by Simon Dylan May 27, 2011
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COFFEE; a hot drink that acts as a brain lubricant; or stimulates brain function
To get his mind functioning properly for the test on differential equations, Axel stopped at Starbucks for a cup of brain lube.
by BCATThompson October 7, 2021
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The excuse for stupidity and immaturity during summer. This could also be used as an excuse for saying something stupid in general.
Someone: Umm what…?
Me: I have summer brain right now:)
by Ardybardy April 29, 2021
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When your brain is as small as a sprinkle
Sarah has a sprinkle brain
by Fireman2125 November 5, 2017
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Please help my friend keeps licking this deoderent stick looking thing. IT IS FREAKING ME THE FUCK OUT
My friend sexally licks a Brain Licker.
by Spinman098 September 2, 2022
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The ultimate and greatest power of knowledge known to man... used in a way that no one has seen before. It is only rewarded to the most knowledgeable and almighty human beings who live on earth.
'Hadley answers an a-level maths question by Miss Bolton'
Bartek, Thomas and Matyi: 'Wow Hadley... you have so much BRAIN KNOWLEDGE'
by teby the great November 23, 2022
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