'Exam slave' is a humorous, slightly self-deprecating or critical slang term for students who are excessively preoccupied with test scores, rankings, and academic performance—often at the expense of well-being, creativity, or balanced development. The character 考 (kǎo) means 'to take an exam' or 'to test', while 奴 (nú) literally means 'slave' or 'servant'. Together, they form a vivid metaphor: someone enslaved by the pressure to succeed academically, especially under China’s highly competitive education system.

This term is commonly used in informal speech, online forums, and youth media—not as formal criticism but as social commentary or empathetic shorthand. It reflects widespread concern about academic stress, parental expectations, and standardized testing culture. While often applied to high school or university students preparing for major exams like the Gaokao, it can also describe adults pursuing certifications or promotions through relentless test-taking.