Zwine Dude
A guy who thinks he's the shit and is cocky on the outside, but in reality he sucks at life and has no confidence.
"Hey Jenny, I know Kevin, and trust me, he's totally a Zwine Dude."
"Don't bother letting Kevin get to you because he's a total Zwine Dude."
"Don't bother letting Kevin get to you because he's a total Zwine Dude."