Meaning
This informal verb describes the act of attending university or training classes without being officially enrolled or registered. The character 蹭 originally means 'to rub against' or 'to freeload,' and when combined with 课 (class), it creates the meaning of attending classes informally, often to learn something for free or out of interest without paying tuition or completing assignments.
Usage
Commonly used in college and university contexts where students attend lectures in subjects they're curious about but haven't registered for. The term has a slightly casual, even playful tone, and is widely accepted in Chinese academic culture. It's typically not used for K-12 education. Often appears with 去 (to go) as in 去蹭课.
Examples
- 01我对经济学很感兴趣，所以经常去蹭课。, .I'm very interested in economics, so I often audit classes.
- 02这个教授的课很受欢迎，每次都有很多人来蹭课。, .This professor's class is very popular; many people come to sit in every time.
Characters
Measure words
- 节蹭了一节课
- 次蹭过几次课
Common collocations
- 去蹭课to go audit a class
- 蹭课族class crashers (group)
- 允许蹭课to allow auditing
Antonyms
Origin
蹭 carries connotations of taking advantage of something without official permission or payment, similar to 'rubbing up against' an opportunity. Combined with 课, it creates a colloquial expression for unofficially attending classes.