1. a phrase used to express the idea that it is important for teachers in colleges and universities to publish books, etc. about their research, and that if they fail to do so it will have a bad effect on their career. The idea is sometimes criticized because teachers are seen to be spending more time on their writing than on their teaching.

[TahlilGaran] English Dictionary ▲

university professors often have to publish books or articles in journals or they will not be successful in their jobs at the university
As a university professor his father wrote many scientific papers. He was forced to publish or perish.

The professor was forced to publish or perish if he wanted to advance in his career at the university.

[TahlilGaran] English Idioms Dictionary ▲