The term SCRUB CLEAN is a job description that involves two steps. The first step is to SCOUR, which means to CLEAN something by rubbing it hard with a brush or other abrasive object. This is usually done to remove dirt, grime, and other debris from surfaces. The second step is to CLEAN, which means to make something free of dirt, dust, and other unwanted substances. Together, these two steps create a thorough cleaning process that can be used on many different surfaces.