An intellectual who is all too keen to flaunt his intelligence.

To the point of being irritating, generally..

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.

(n.) A term used to mock someone who attempts to appear intelligent.

someone who thinks they're quite intelligent
usually used in a mocking fashion, although it can also be meant literally

A Dutch detective drama.