Offal is a collective term referring to the internal organs and entrails of an animal butchered for human consumption. In the original sense of the term “offal” refers to the entrails and literally means “off fall,” or the pieces that fall from a carcase when it is butchered. Offal is used in the same form for both singular and plural and refers to the blood, brain, giblets, gizzards, heart, kidney, liver, lungs, pancreas, spleen, stomach or tripe, testicles, thymus, and tongue of the animal. It may also include the cheeks, ears, marrow bones, necks, shins, snouts, tails, and trotters.