Grey Work is a term used to describe the work of an OATER, which is a person who works in the film industry as a stuntman or stuntwoman. An OATER is someone who performs dangerous stunts and other physical feats for films and television shows. They are often seen performing stunts such as high falls, car chases, and fight scenes. Grey Work is the term used to describe the work of an OATER, as it is often dangerous and requires a great deal of skill and precision.