The phrase "one you can hang wash on" typically refers to a clothesline or clothes rack. If you are looking for synonyms for this phrase, you can consider terms such as "drying rack," "laundry line," or "clothes horse." A drying rack is a portable or stationary device designed to hold wet clothes for air-drying. A laundry line refers to a line typically strung between two poles or trees, which is used for hanging clothes to dry. A clothes horse is an alternative term for a drying rack, and it is typically used to describe a wooden frame with bars for hanging clothes. Whatever term you use, all of these options are great for air-drying your clothing.