The phrase "work bone" refers to someone who is dedicated and hardworking, often to the point of exhaustion. Synonyms for this term include workhorse, grafter, toiler, laborer, drudge, and slave driver. These words all describe someone who is committed to completing their tasks to the best of their ability, and who does not shy away from hard work. Other synonyms for "work bone" include hustler, go-getter, and high achiever. All of these terms are often used to describe individuals who are highly motivated and driven in their professional lives, and who are willing to make sacrifices in order to achieve their goals.