What is a full-level cub?

Full-level children. According to Baidu Lulin query, full-level cubs refer to those children who have reached the highest level in a certain field or skill. This term originated from the gaming field and is used to describe those players who have reached the highest level in the game. With the popularity of the Internet and social media, this term has gradually evolved into an adjective used to describe those who have reached the highest level in a certain field or skill.