`内卷` is an extremely common, informal term used to complain or comment on situations of intense, seemingly useless competition. It's prevalent on social media and in conversations among young people.
In Education: Students describe the endless cycle of extra classes and all-night study sessions as `内卷`. If one student hires a tutor, everyone else feels pressured to do the same, even if it just raises the average score without changing individual rankings.
In the Workplace: This is the most common context. Employees staying late not because they have work, but because no one else has left yet, is a classic example of `内卷`. It's about performing diligence rather than being productive.
In Daily Life: The term has expanded to describe everything from parenting (pushing kids into dozens of activities) to fitness (people one-upping each other's workout routines on social media).
Connotation: It is almost exclusively negative, expressing feelings of stress, exhaustion, and helplessness.