The English Idioms Your Teacher Never Explained
Have you ever read a novel, watched a film, or listened to a colleague speak, and heard a phrase that made no sense even though you understood every single word in it? Someone says “it’s raining cats and dogs” and you wonder what animals have to do with weather. Someone says “break a leg” before your interview and you panic, wondering why they wish you harm. This confusion is completely normal, because idioms do not mean what their individual words suggest. In this guide, I will explain the most common English idioms in simple language, show you exactly when to use them, and help you understand them the way a native English speaker naturally does.
Quick Promise: I have explained idioms to hundreds of students over the years, and one lesson I always teach is this: idioms are not random confusion. They follow patterns you can learn once and use for a lifetime.
What Exactly Is an Idiom?
An idiom is a group of words whose meaning is different from the meaning of each individual word. For example, “spill the beans” has nothing to do with beans. It means to reveal a secret. Many people believe idioms are just “difficult English,” but that is not correct. Idioms exist in every language, including Nigerian languages and Pidgin. For example, in Pidgin, “the matter don cast” simply means a plan has failed, which is itself an idiom. English idioms work the same way, just with different images and expressions.
Remember: You are not alone if idioms confuse you at first. Even advanced English speakers sometimes hear an idiom for the first time and need it explained. The goal is understanding, not memorising every idiom that exists.
Why Idioms Confuse Nigerian Students So Much
They are taught to be memorised, not understood: Most students were taught idioms as a list to cram for exams, without learning the story or logic behind them.
They rarely appear in classroom textbooks with real context: Idioms are learned properly through movies, conversations, and reading, not through isolated definitions.
Mother tongue and Pidgin idioms don’t always translate directly: A Nigerian idiom translated word for word into English often confuses a foreign listener, and the reverse is also true.
Idioms for WAEC, NECO, and JAMB English
Idioms often appear in comprehension passages, oral English sections, and essay writing. Knowing a few common ones can help you understand exam passages faster and impress examiners in your essays.
Idiom Meaning Example Sentence
Burn the midnight oil: To study or work very late into the night. “Many JAMB candidates burn the midnight oil before the exam.”
Hit the books: To study seriously. “She had to hit the books to prepare for her NECO exams.”
Once in a blue moon: Something that happens very rarely. “Our English teacher gives an easy test once in a blue moon.”
A piece of cake: Something very easy to do. “The comprehension passage was a piece of cake for her.”
One simple trick I recommend for remembering idioms is picturing the literal image in your mind first, then connecting it to the real meaning. For “burn the midnight oil,” imagine someone reading by lamplight late at night, since electricity was once scarce and people used oil lamps to study after dark.
Quick Exercise: Match the Idiom
Match each idiom on the left with its correct meaning on the right.
- Hit the books — (a) very easy
- A piece of cake — (b) study seriously
- Once in a blue moon — (c) rarely happens
Answers: 1-b, 2-a, 3-c
Idioms for Job Interviews and the Workplace
Using the right idiom naturally in an interview or at work can make you sound confident and fluent, but using the wrong one can create confusion. Here are safe, common ones to know.
Idiom Meaning Example Sentence
Think outside the box: To think creatively, beyond usual methods. “The interviewer asked me to think outside the box to solve the problem.”
Get the ball rolling: To start a task or project. “Let’s get the ball rolling on the new client proposal.”
On the same page: To have the same understanding as others. “Before the meeting ends, let’s make sure we are all on the same page.”
Learn the ropes: To learn how to do a new job or task. “As a new NYSC corps member, it took me a week to learn the ropes.”
Break the ice: To ease tension and start a conversation. “I used a simple joke to break the ice during my first office meeting.”
Expert Tip: One mistake I see almost every day is students using idioms too formally in a job interview, saying something like “I would like to break the ice with a joke.” My advice is simple: use idioms naturally, in passing, the way you would in normal conversation.
Idioms for Emails and Professional Writing
Some idioms fit naturally into professional writing, while others are too casual for formal emails. This is one area where many Nigerian professionals get it wrong.
Idiom Appropriate For Example
Touch base: Formal emails, professional check-ins. “I am writing to touch base regarding our previous discussion.”
Circle back: Formal emails, follow-up messages. “I will circle back to you once I have the updated figures.”
Keep me in the loop: Semi-formal, workplace communication. “Please keep me in the loop on the project’s progress.”
Down to the wire: Informal, avoid in formal client emails. Better used in casual conversation with colleagues, not in a client-facing email.
The correct way to use idioms in professional writing is sparingly, one or two per email at most, so your message still feels clear and direct.
Idioms for Everyday Nigerian Conversations
These idioms fit naturally into daily conversations, at church, at the market, on social media, or with friends and family.
Idiom Meaning Example Sentence
Under the weather: Feeling slightly unwell. “I couldn’t attend service today because I was feeling under the weather.”
Cost an arm and a leg: Very expensive. “The new phone I saw at the market cost an arm and a leg.”
Beat around the bush: To avoid saying something directly. “Stop beating around the bush and tell me what happened.”
Let the cat out of the bag: To accidentally reveal a secret. “My cousin let the cat out of the bag about the surprise party.”
Bite the bullet: To face a difficult situation bravely. “I had to bite the bullet and tell my boss about the mistake.”
Idioms to Be Careful With
Some idioms are commonly misused or misunderstood by Nigerian speakers. Here’s an easy way to remember the correct versions.
Common Mistake Correct Version Explanation
“For all intensive purposes”: “For all intents and purposes”. This idiom means “in every practical sense.” The word is “intents,” not “intensive.”
“I could care less”: “I couldn’t care less”. The correct idiom means you care so little that it is impossible to care any less.
“Nip it in the butt”: “Nip it in the bud”. This means to stop a problem early. “Bud” refers to a flower bud being cut before it grows, not an animal’s body part.
Pronunciation and Delivery Tips for Idioms
Say idioms at a natural, relaxed pace. Idioms spoken too slowly or too formally can sound awkward, since they are meant to flow naturally in conversation.
Do not pause dramatically before or after using an idiom. Native speakers use idioms casually, without drawing attention to them.
If unsure how an idiom sounds, listen to it first in a video, podcast, or film before using it yourself.
How to Practise Idioms Daily
Learn two idioms per week, not twenty. Focus on quality understanding over quantity. Small daily practice brings big improvement.
Use each new idiom in a real sentence about your own life. For example, if you learn “hit the books,” write a sentence about your own study plans.
Notice idioms in what you read and watch. Once you start noticing them, you will realise idioms appear constantly in films, interviews, and articles.
Practise using one idiom naturally in conversation each week. This builds real confidence, rather than idioms staying only in your notebook.
Quick Revision Summary
- Idioms cannot be understood by translating each word separately; learn the full meaning as one unit.
- Different idioms suit different situations: some for exams, some for the workplace, some for casual conversation.
- Use idioms sparingly and naturally in professional writing, not excessively.
- Watch out for commonly misused idioms like “for all intents and purposes” and “nip it in the bud.”
- Learn idioms gradually, two or three per week, using them in real sentences immediately.
Frequently Asked Questions
Why do idioms confuse me even when I know all the individual words?
This is one of the most common English mistakes Nigerians make, misunderstanding, because idioms carry a meaning that is different from their individual words. Understanding idioms requires learning the whole phrase as one unit, not translating word by word.
Are idioms important for WAEC and JAMB English exams?
Yes, idioms sometimes appear in comprehension passages and can also improve the quality of your essay writing when used correctly and naturally, without overusing them.
Is it safe to use idioms in a job interview?
Yes, using one or two idioms naturally can make you sound fluent and confident. However, avoid using too many idioms, as this can make your speech feel forced rather than natural.
Can idioms be used in formal emails?
Some idioms, like “touch base” or “circle back,” fit well into formal emails. Others, like very casual idioms, are better kept for spoken conversation rather than formal writing.
How many idioms should I learn per week?
Two to three idioms per week is realistic and sustainable. Focus on understanding each one deeply and using it in real conversation, rather than memorising long lists quickly.
Conclusion: Idioms Bring Your English to Life
If you want to improve your English faster, don’t try to memorise every idiom in the dictionary at once. Focus on the idioms in this guide first, practise using two or three of them this week, and let the rest come naturally over time. This mistake is easier to fix than you think, and with regular practice, you will improve until idioms feel like a natural part of your English, in your exams, your workplace, and your everyday conversations.
For more lessons on mastering your exams, visit our English for Exams section. If you are preparing for interviews or professional communication, explore English for Jobs and Career. For everyday communication skills, check out English Skills and Communication, and visit ExamGuideNG to explore our complete library of lessons.
Reference: British Council notes that idioms are best learned in context and used naturally in conversation, rather than memorised as isolated phrases.
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Written by Tr. Edidiong Sunday
About Author
Edidiong Sunday is an English educator, communication specialist, and the founder of ExamGuideNG. She holds a Diploma in Mass Communication and a B.Ed. in English Education from the University of Uyo, and is currently pursuing a Master’s degree in English Education. With years of experience teaching English Language, Diction, and Public Speaking in reputable schools in Uyo, she creates practical, accurate, and learner-focused content to help students, job seekers, and professionals improve their English skills. Edidiong also runs a JAMB English tutorial centre in Uyo and has professional experience in journalism, broadcasting, and public speaking. Every article she publishes is guided by a commitment to clarity, accuracy, and helping learners achieve lasting success in academics, examinations, and everyday communication.
