Reddit Genius 

Someone who believes, wrongfully so, that they are smarter than everyone else because they spend all of their time on Reddit.

Person 1: This loser in my class thinks he’s so smart because he reads r/socialism all day. He only comes once a week & doesn’t even bring a pen or paper to take notes, just gives moronic input on every topic discussed

Person 2: Typical Reddit Genius, I bet he’ll fail out anyway

Reddit Genius by laenos September 23, 2019