Cooties is a term used to describe an imaginary contagious disease that is spread among children. It is often used to describe a feeling of disgust or revulsion towards someone or something. The term can also be used to describe a person's behavior, such as being LICENTIOUS. LICE is a type of parasitic insect that feeds on the blood of humans and other animals, while licentiousness is a lack of moral restraint, especially in sexual matters.