what is mascot
mascot. 1  any person, animal, or thing supposed to bring good luck. 2  any person, animal, or thing adopted by a group, esp. by a sports team, as a symbol or for good luck: the team's mascot is a bear.oun. The definition of a mascot is a good luck symbol, especially for a team. An example of a mascot is Mr. Met for the New York Mets.