The term 'Breadcrumb Carrier' refers to an ANT, which is a small insect with three letters. Ants are known for their ability to carry food back to their colonies, and this includes breadcrumbs. They are able to carry up to 50 times their own body weight, making them ideal for carrying food back to their nests. Ants are also known for their hard work and determination, which makes them great breadcrumb carriers.