Offals refer to the various organs, entrails and other parts of an animal that are usually discarded after slaughter. Synonyms for offals include innards, giblets, variety meats, and awfuls. Innards generally refer to the internal organs and entrails of an animal, while giblets include the liver, heart, and gizzard of poultry. Variety meats are all the edible parts of an animal other than its muscle tissue, such as the tongue, kidneys, and sweetbreads. Awfuls, on the other hand, is an old-fashioned term that is used to refer to the same parts of an animal. While offals may not be everyone's cup of tea, they are often considered delicacies in certain cultures and are a sustainable source of protein.