The Slate Clean is a term used to describe the process of erasing something, usually a surface. It is often used in the context of cleaning a chalkboard or whiteboard, but can also be used to refer to the removal of any type of material from a surface. The term is derived from the phrase 'to wipe the slate clean, ' which means to start over with a fresh start. Erasing is the act of removing something from a surface, usually by using an eraser or other tool. The Slate Clean is a way of ensuring that all traces of the material are removed, leaving the surface completely clean.