The person asking this question is likely seeking to find out if their social media account has been liked, which could signal that someone else found the account interesting. The word "TikTok" is a type of social media app that allows users to post short videos, usually 15 seconds or shorter in length, that are then shared with the user's followers. A "TikTok 2021" would be an old TikTok account, typically used to share content from previous years.