Scawbling is a technique used in stone carving and masonry that involves roughening the surface of the stone to create texture or prepare it for further detailing. It typically involves using a tool called a scawble or a similar implement to create a series of indentations or scratches. This process can help in achieving a desired aesthetic or improving the stone's adhesion when applying finishes or other materials. It is often used in the initial stages of sculpting or when working with larger stone structures.