The term 'CRUM CARRIER' is a job description for an ANT, which is a three-letter word. An ANT is an insect that lives in colonies and is known for its hard work and organization. Ants are capable of carrying objects many times their own weight, making them ideal for the job of a crum carrier. A crum carrier is responsible for transporting food from one place to another, usually from a food source to the colony. This job requires strength and endurance, as well as the ability to navigate through difficult terrain.