Selectively Genius

The characteristic describing someone who claims they are smart, yet they choose not to be. this justifing their actions being in opposition to the claim. Usually the person relies on the term as a fallback to hide their insecurities regarding their scholastic disadvantage

Person 1 “Wow, I can’t believe you did that! You are so dumb!”

Person 2 “I’m not dumb, I’m selectively genius!”