Definitions by SweetK

deconus 

One who's a smart ass, the one, the only, the original smart ass

Wow, that guy over there's a deconus!

Sarcastically spearking guy:
Guy 1: Whoa, that guy over there think's he's such a deconus, he is soooo smart that no one could ever be on his level, wow what a comeback, you freaking deconus!

Guy 2: I concur

deconus by SweetK January 3, 2009