The act of pretending to steal an item from a store, and subsequently sprinting away from the security guard. Can be a form of competition based on who can make it from said store to the nearest fast food chain as soon as possible.
Hey Steve! I'm bored lets go to the mall for some urban sprinting!
When one or more persons inserts fingers into anothers rectum and rapidly moves their fingers back and forth causing fecal matter to expel in a spray paint type fashion all over the room.
"Ew Richie why do you smell so bad???"
"Sorry, Brittany and I were spritzing earlier."