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.
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.