The term 'ERASER CRUMB SITE' can be broken down into four separate words, each with four letters. The first word is 'ERASER, ' which is a tool used to erase pencil marks on paper. The second word is 'CRUMB, ' which refers to a small piece of something, such as a cookie or bread. The third word is 'SITE, ' which is a location or area. The fourth and final word is 'DESK, ' which is a piece of furniture used for writing and other activities. All together, the term 'ERASER CRUMB SITE DESK' could refer to a DESK that is used for erasing pencil marks and crumbs from a particular SITE.