Someone who is considered extremely uncool, especially due to being socially awkward. That guy is a real dorkus maximus. You don't want to be seen talking to him.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
dorkus maximus(ˈdorkəs ˈmæksɪməs)
n. a simpleton or fool; a great fool. Tim is now the dorkus maximus of our dorm since he broke the dorm’s television set.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.