Clip, say is a phrase that refers to the act of attaching something. It is commonly used in everyday language and is often used when talking about attaching something to a surface or object. For example, one might say 'I need to clip this picture to the wall' or 'I'm going to clip this paper to my shirt'. The term clip, say is also used in other contexts such as when referring to attaching a document to an email or when attaching a file to a computer program.