-Hey do you know where there's any sex rocks at.
-Ya just have a looksy at the fucking ground.
Urban sand is the term used to describe a cluster of trash with in an area or place that you don't want to pick up more or less liven up because life's better on a beach and eventually that's what are sands gonna be from all the excess rubbish in our oceans.
-Hey can you pick up this place?
-No I'm just trying to build up some urban sand for my soon to be beach house