What is the cradle wash?

Excuse me, could you please clarify what you mean by "cradle wash"? I'm not familiar with this term in the context of cryptocurrency or finance. Is it a specific type of transaction, a security measure, or perhaps a slang term used in a particular community? Could you provide some additional context or explain the concept further? It would be helpful to have a clearer understanding of what you're referring to in order to give an accurate description.