When all your higher brain functions return upon the completion of a test and you realise how much of a disappointment you are.
Ace: Man that test was so easy for me! How'd you go?

Walt: ...I just had the biggest Post Test Clarity ever...I want to die.
by COKE AND COLA February 22, 2022
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The feeling of lucidity a student gets after finishing a test and turning it in. Said student will suddenly understand a question that has puzzled them on the test or realize a dumb mistake they have made on the exam. This feeling is often accompanied by regret, despair, and disgust, for it is too late to make any changes to the text.
Emily: "Oh NO! I forgot to add C after I integrated on problem 7 part a!"
John: "At least you had post-test clarity, so you won't make the mistake next time."
by BigDuckPear September 9, 2021
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