The act of jerking off while reading all of the half ass, simplistic definitions on urban dictionary that some people seem to think are cleaver or funny.
Regular Person: Hey, you want to go do something productive with our time.
Looser: Nah, I'm going to throw my life away online having urbanal sex.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.