The term 'SWABS' Tools' refers to the cleaning tools used by janitors and other custodial workers. The most common of these tools are MOPS, which are four-letter words. MOPS are used to clean floors, walls, and other surfaces, and come in a variety of shapes and sizes. They are usually made of absorbent materials such as cotton, microfiber, or synthetic fibers, and are often attached to a handle for easy maneuvering. MOPS are an essential part of any janitor's toolkit, and are used to keep surfaces clean and free of dirt and debris.