A copycat (also copy-cat or copy cat) is a person (or animal, or computer program) that mimics or repeats the behavior of another. The expression may derive from kittens that learned by imitating the behaviors of their mothers. It has been in use since at least 1896, in Sarah Orne Jewett's "The Country of the Pointed Firs". The term is often derogatory, suggesting a lack...
