Brain-poser
It combines "brain" with "poser," immediately signaling someone who's faking intelligence. it is direct and a little bit playful, highlighting the act of "posing" as intelligent.
"He spent twenty minutes using all sorts of fancy jargon, but it was clear he was just a brain-poser trying to impress the boss."
"Don't listen to her; she's a total brain-poser who just repeats things she hears online without understanding them."
"Don't listen to her; she's a total brain-poser who just repeats things she hears online without understanding them."
Brain-poser by Mac Merk July 22, 2025
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