Folder filler is a job title that describes someone who is responsible for organizing and filing documents. The term is made up of three words: FILE, FILER, and spam. FILE is a four letter word that refers to a container used to store documents or other items. FILER is a five letter word that describes someone who is responsible for organizing and filing documents. Spam is a four letter word that refers to unsolicited emails or other electronic messages. Together, these three words form the job title folder filler.