Gamification is the application of game-design elements (e.g. point scoring, competition with others) in non-game contexts (e.g. participation rate, homework)

You are an athlete aspiring to compete in the 2024 Olympics, but the last slot was taken away by your athlete best friend who competes in the same event. One day you find out that that friend uses performance-enhancing drugs (i.e. doping) and that you would have gotten that slot in absence of your friend. Your coaches and team managers are unaware of the doping.

Wall of shame in Peru refers to a wall built for approximately 10 kilometers on a hill southeast of the capital, Lima.  The wall completely separates the area with rich and middle-income people living on one side, and poor people living on the other side. 

The wall was built by rich to improve public security by preventing the poor to come into their areas.  Between these two areas, there is a significant difference in the living environment including but not limited to infrastructure.

You are a one of the leaders of feminist movement which strongly criticizes patriarchy and advocates for female independence. On the other hand, you are secretly dating a man who recently asked you to marry him. However, he told you that he felt it stressful to keep their relationship secret any longer and proposed making the marriage public or otherwise breaking up.

整形アイドル refers to clebrities like idol groups or Youtubers who publically opened that they did cosmetic surgery. Example of 整形アイドル are 整形アイドルプロジェクト and 整形アイドル轟ちゃん.