Common School Idioms in English (With Meanings and Examples)

If you’re an English learner, you might have come across some school idioms in English related to education. These expressions can be confusing at first, but they are a useful part of everyday English—especially when people talk about studying, grades, exams, and school life.

Idioms do not have literal meanings. Instead, they add color and nuance to English and often appear in conversations, movies, and social media. By learning common school idioms, you can understand English more naturally and sound more fluent and confident.

Common School Idioms in English

What Are School Idioms?

Idioms are fixed expressions with a figurative meaning that is different from the literal meaning of the words. School idioms are idioms commonly used when talking about education, studying, exams, grades, and student behavior.

Usage note: Not every school-related phrase is an idiom. Only true idioms are included, with clear distinctions from literal school terms.

Some school idioms are positive and imply success, such as pass with flying colors. Others are informal or slightly negative, such as play hooky (skip school). Always consider the tone, formality, and context before using an idiom.

Common School Idioms

Below is a curated list of high-frequency school idioms, grouped by topic. Each idiom is presented with its meaning and an example sentence.

Studying & Learning

• hit the books — study hard
  I can’t go out tonight. I need to hit the books.
• learn by heart — memorize something completely
  We had to learn the poem by heart.
• put your thinking cap on — think carefully and focus
  Put your thinking cap on—this problem is tricky.
• burn the midnight oil — study or work late at night
  She burned the midnight oil to finish her project.
• take a crash course — learn a lot in a short time
  I took a crash course in Excel before my internship.
• a steep learning curve — something that is difficult to learn at first
  Programming has a steep learning curve for beginners.

Exams, Grades & Results

• ace a test — get an excellent score
  He aced the math test.
• pass with flying colors — pass very successfully
  She passed her final exam with flying colors.
• straight-A student — a student who gets A’s in all subjects (US English)
  My sister is a straight-A student.
• on the honor roll — officially listed for high academic achievement (US English)
  He made it onto the honor roll this term.
• skate by — succeed with minimal effort (informal; slightly negative)
  He didn’t study much, but he still skated by.
• A for effort — praise effort even if the result is not perfect (often humorous or mildly sarcastic)
  You didn’t win, but A for effort!

Students, Classroom Roles & School Life

• bookworm — someone who loves reading
  She’s a real bookworm—she reads every day.
• class clown — a student who jokes to get attention
  He’s the class clown, but he’s also smart.
• teacher’s pet — a student favored by the teacher (often negative or jealous tone)
  He always answers first—everyone thinks he’s the teacher’s pet.
• extra credit — extra work that can improve a grade
  I did an extra credit assignment to raise my grade.

Skipping School & Discipline (Informal)

• play hooky — skip school or work without permission (informal; disapproved)
  They played hooky and went to the beach.
• cut class — skip a class (informal; US English; disapproved)
  Don’t cut class—you’ll miss the quiz.
• skip class — not attend a class (neutral to informal)
  I skipped class because I was sick.

School-Related Terms

The following are literal school terms. They are often mistaken for idioms, but they do not have figurative meanings.

• study hall — a scheduled time or place for studying
• pop quiz — a surprise quiz
• report card — a record of a student’s grades
• homeroom — a class group for daily attendance or announcements
• show of hands — voting or answering by raising hands

Tone, Formality & Region

• Informal / disapproved: cut class, play hooky (avoid in formal writing).
• Negative tone: teacher’s pet may sound insulting—use carefully.
• American English: straight-A student, honor roll, cut class.
• Neutral & safe: hit the books, learn by heart, pass with flying colors.

Last Updated on January 15, 2026