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Trying to look fancy and important, usually by using too many big words and acting like you're smarter than everyone else. It almost always backfires.
"I'm not just smart, I'm *academically distinguished*," he said, while failing basic algebra.
She used the word 'ubiquitous' in a sentence and then cried when no one understood it.
He tried to sound fancy by saying 'I'm going to the library to read some *ephemeral literature*,' which is just a fancy way of saying he was going to watch Netflix.