Define Smartest Guy In The Room Meaning

Smartest Guy In The Room
The one we all hate, who is never content not being the center of attention. Every story told near this guy gets a response of what he would've done, how you screwed up, or a whitty use of math/science to assert him dominance.

I was talking to Carl about an episode of Breaking Bad and he lectured me about all the science that's wrong with the show, while using words he knows that I don't know, just to show how he is the smartest guy in the room and I am not
By Agnese