Copycat/ˈkɑːpikæt/ Definition 1 of 3Pro Tip 1/3Negative Implication Often used disparagingly to criticize lack of originality. His work is just a copycat of the famous artist; nothing unique. Pro Tip 2/3Peer Influence Common in school settings where students mimic others. She's such a copycat, always wearing whatever Emma wears. Pro Tip 3/3Not Always Negative Can be benign, as in cases where imitation is a form of flattery. Your little brother is a real copycat, always following your good habits.