18 School Idioms in English and What They Really Mean [2026]

School idioms outlast school itself. The phrases we learn for studying, memorising and being tested carry straight into adult life, where every new job or skill brings its own steep learning curve and its own books to hit. This list gives you eighteen with a plain meaning and one natural example each, then the British slang for hard study and quietly slipping away.

Study idioms you will really hear

1. hit the books: to study hard. With finals next week, it is time to hit the books.
2. learn by heart: to memorise something completely. Actors have to learn their lines by heart.
3. burn the midnight oil: to study or work late into the night. She burned the midnight oil to finish the essay.
4. a bookworm: someone who loves reading. My youngest is a bookworm who gets through a novel a week.
5. a steep learning curve: something difficult to learn quickly. Starting the new software was a steep learning curve for everyone.
6. make the grade: to reach the required standard. Only half the trainees made the grade.
7. top of the class: the best performer in a group. Her design was top of the class at the awards.
8. put your thinking cap on: to think hard about something. Right, everyone put your thinking caps on for this puzzle.
9. the school of hard knocks: learning through tough life experience rather than formal study. He never went to university; he learned in the school of hard knocks.
10. old school: traditional, in an older style. Grandpa is old school and still writes letters by hand.
11. show someone the ropes: to teach someone how to do a job. Priya kindly showed the new starter the ropes.
12. cover old ground: to repeat things already dealt with. Let us not cover old ground; move to the next point.
13. a bright spark: a clever person, sometimes said ironically. Some bright spark left the freezer door open all night.
14. pass with flying colours: to succeed in an exam very impressively. After weeks of revision, she passed her chemistry exam with flying colours.
15. teach an old dog new tricks: to get someone set in their ways to change. Dad refuses to use the app; you cannot teach an old dog new tricks.
16. the teacher's pet: the pupil the teacher clearly favours. Being the teacher's pet did not make him popular.
17. pass the test with room to spare: to succeed comfortably, with margin. The car passed its safety test with room to spare.
18. a crash course: a short, intensive period of learning. Before the trip, I took a crash course in basic Italian.

The British slang for studying and skiving

British students have their own vocabulary. A swot is someone who studies very hard, and to swot up on a subject is to revise it intensively before an exam. To skive, or skive off, is to avoid school, work or a duty: he skived off games on Fridays. The more formal phrase for missing school without permission is to play truant, where American English says play hooky. The slang terms are casual and spoken, so you will hear them among students far more than you will read them.

Idioms settle best when you use them for your own learning, not just recognise them. Pick two from this list and apply them to something you are studying now. For everyday wellbeing sayings, see our health idioms guide. And when you want to measure your English, a free English level test will place you on the CEFR scale.