Urb Dick is an abreviation for "urban dictionary" and is used when not wanting to complete all six syllabyls. it also gives you permission to say 'dick' on a regular basis.
Hey I'm pretty intellectually inadequate, insecure, and superficial. Let me go Urb-Dicking someone because I dont have the cohonays to say it to them personally. Even if I am the only one who understands my joke or meaning so what? It's hip and cyber to add to this right? Right?!?