The term 'POSTAL STUFF' can be broken down into two words: 'MAIL' and 'STUFF'. The word 'MAIL' is a four-letter word that refers to the postal system, which is responsible for delivering letters, packages, and other items from one place to another. The word 'STUFF' is a four-letter word that refers to items or materials that are used in the postal system, such as envelopes, stamps, and other supplies. Together, these two words form the term 'POSTAL STUFF', which is used to refer to all of the items and materials that are necessary for the postal system to function.