A guy who uses lots or big words and phrases found on urban dictionary to try to seem cool. Comes off as a dick. Hence UrbDick.
Urbdick: "Brah, I'm so pregrateing this fucking campy ass rave i'm boutta go to. i'm gonna get baked as fuck. you should come, but shit i'm gonna get man points tonight."
guy 1 (whispers to guy 2): "jeez he's so fucking arrogant. and who the hell does he think he is with all these fucking words?!"
guy 2: "i know, he's such an urbdick!"
The use of the word "blue" to refer to sexually explicit content was first recorded in Scotland in 1824. "Blue" meant "lewd" because prostitutes dressed in blue gowns.