Taxi drivers are individuals who transport passengers from one place to another in exchange for a fee. They are commonly referred to as cabmen, hacks, or hackies. Cabmen is a term used to describe taxi drivers that have been licensed by the local government and are typically found in larger cities. Hacks is a slang term used to refer to taxi drivers, while hackies is another slang term used to describe taxi drivers, usually in a more derogatory manner.