What is sleugh his skin?

"Sleugh his skin" is a phrase that means to shed or cast off one's skin. It is often used in a figurative sense to describe a person who is changing or transforming themselves. For example, someone who is recovering from an addiction might be said to be "sleuthing their skin" as they let go of their old habits and adopt new ones. The phrase can also be used more literally to describe the process of shedding skin, such as when a snake sheds its skin.