FAST COMPANION is a job title that describes someone who is reliable and able to work quickly. The term is composed of two words, 'FAST' and 'COMPANION, ' which together describe the qualities of the job. The first word, 'FAST, ' implies that the person is able to work quickly and efficiently. The second word, 'COMPANION, ' implies that the person is reliable and trustworthy. Together, these two words create a job title that describes someone who is both FAST and reliable.