100 English Idioms You'll Hear in Everyday Conversations

1What Are Idioms and Why You Can't Translate Them

An idiom is a phrase whose meaning can't be understood from the individual words. 'Break a leg' doesn't mean fracture your limb—it means 'good luck.' 'It's raining cats and dogs' doesn't involve animals falling from the sky—it means heavy rain. The meaning is figurative, stored in the phrase as a whole, not derivable from its parts.

This is what makes idioms so frustrating for learners. You can know every word in 'let the cat out of the bag' and still have no idea it means 'to reveal a secret.' Translation fails because idioms are culturally encoded—they evolved within English-speaking communities and carry meaning that exists nowhere else in the language.

English has an estimated 25,000+ idioms, but don't panic. Most native speakers actively use only a few hundred, and about 100–200 cover the vast majority of everyday conversation, media, and business communication. That's what this guide covers: the idioms you'll actually encounter.

You don't need to learn 25,000 idioms. About 100–200 cover 90% of everyday English. Learn these by topic, in context, and the rest will come naturally through exposure.

2Idioms About Emotions and Feelings

Emotions are one of the richest areas for idioms. English speakers rarely say 'I'm very happy'—they say 'I'm over the moon' or 'I'm on cloud nine.' Here are the most common emotional idioms.

Emotions & Feelings

Over the moon—Extremely happy, delighted

She was over the moon when she got the job offer.

Under the weather—Feeling ill or sick

I'm feeling a bit under the weather today—I might stay home.

On cloud nine—Extremely happy, euphoric

He's been on cloud nine since he passed the exam.

Cold feet—Nervousness or fear before a big decision

She got cold feet the night before the wedding.

Butterflies in your stomach—Nervous excitement, anxiety

I always get butterflies in my stomach before a presentation.

Hit the roof / Hit the ceiling—To become extremely angry

My dad hit the roof when he saw my grades.

A piece of cake—Something very easy

The test was a piece of cake—I finished in 20 minutes.

Cry over spilled milk—To be upset about something that can't be undone

The flight is cancelled. No use crying over spilled milk—let's find another option.

3Idioms About Work and Success

The workplace is full of idioms—especially in English-speaking corporate culture. Knowing these makes meetings and emails much easier to follow.

Work & Success

Burn the midnight oil—To work very late into the night

We've been burning the midnight oil to finish the project on time.

Climb the corporate ladder—To advance in your career through promotions

She's been climbing the corporate ladder since she joined five years ago.

Think outside the box—To think creatively and unconventionally

We need to think outside the box to solve this problem.

Go the extra mile—To make more effort than expected

Good employees always go the extra mile for their clients.

Back to the drawing board—To start over because the plan failed

The client rejected the design, so it's back to the drawing board.

Pull your weight—To do your fair share of work

Everyone on the team needs to pull their weight.

Get the ball rolling—To start something, initiate action

Let's get the ball rolling on the new marketing campaign.

A long shot—Something unlikely to succeed but worth trying

Getting into that university is a long shot, but I'll apply anyway.

4Idioms About Money and Finance

Money idioms appear constantly in business, news, and everyday conversation. Many of them reflect cultural attitudes toward spending and saving.

Money & Finance

Break the bank—To cost too much money, to be very expensive

We need a new laptop, but it doesn't have to break the bank.

Cost an arm and a leg—Extremely expensive

That restaurant costs an arm and a leg—let's go somewhere cheaper.

Make ends meet—To earn just enough money to cover basic expenses

Many families struggle to make ends meet with rising prices.

A penny for your thoughts—Tell me what you're thinking (used when someone is quiet)

You look deep in thought. A penny for your thoughts?

Tighten your belt—To spend less money, to cut expenses

With the recession, everyone has to tighten their belts.

Pay through the nose—To pay much more than something is worth

We paid through the nose for parking at the airport.

5Idioms About Relationships and People

English has a rich vocabulary of idioms for describing how people interact, connect, and sometimes clash.

Relationships & People

Hit it off—To immediately get along well with someone

We hit it off at the party and have been friends ever since.

See eye to eye—To agree with someone

My boss and I don't always see eye to eye, but we respect each other.

Stab someone in the back—To betray someone who trusts you

I can't believe she stabbed me in the back after I helped her.

Give someone the cold shoulder—To ignore someone deliberately

After the argument, he gave me the cold shoulder for a week.

Break the ice—To start a conversation in a social situation, reducing tension

The host told a joke to break the ice at the networking event.

On the same page—In agreement, having the same understanding

Let's make sure we're all on the same page before we proceed.

6Idioms About Time and Deadlines

Time-related idioms are especially common in professional settings where deadlines and schedules matter.

Time & Deadlines

In the nick of time—Just barely in time, at the last possible moment

We arrived at the airport in the nick of time—the gate was about to close.

Around the clock—24 hours a day, continuously

The hospital operates around the clock.

Time flies—Time passes quickly (especially when you're busy or having fun)

I can't believe it's December already. Time flies!

Against the clock—Rushing to finish before a deadline

We're working against the clock to deliver the project by Friday.

Kill time—To do something to pass time while waiting

I killed time at the airport by reading a book.

Once in a blue moon—Very rarely

I only eat fast food once in a blue moon.

7Idioms About Difficulty and Challenges

When things get tough, English speakers reach for idioms. These expressions describe struggles, frustrations, and the moment when you decide to push through.

Difficulty & Challenges

The last straw—The final problem that makes a situation unbearable

Being late again was the last straw—she got fired.

Bite the bullet—To face a difficult or unpleasant situation with courage

I finally bit the bullet and went to the dentist.

Back against the wall—In a difficult situation with no easy way out

With the deadline tomorrow and half the work undone, our backs are against the wall.

Easier said than done—Something is much harder to do than to talk about

Losing weight is easier said than done.

Weather the storm—To survive a difficult period

The company managed to weather the storm during the pandemic.

Throw in the towel—To give up, to quit

After three failed attempts, he threw in the towel.

8Idioms About Communication

Communication idioms are everywhere—in meetings, conversations, and media. They describe how people talk (or fail to talk) to each other.

Communication

Beat around the bush—To avoid saying what you really mean, to be indirect

Stop beating around the bush and tell me what happened.

Get to the point—To say the main thing directly, without unnecessary details

I don't have much time—can you get to the point?

Speak your mind—To say exactly what you think, honestly

She always speaks her mind, even when it's uncomfortable.

Read between the lines—To understand the hidden meaning, not just the literal words

The email sounds positive, but if you read between the lines, they're not happy.

Let the cat out of the bag—To reveal a secret accidentally

She let the cat out of the bag about the surprise party.

Actions speak louder than words—What you do is more important than what you say

He says he'll change, but actions speak louder than words.

9Idioms Used in Podcasts, YouTube, and Real Media

If you consume English media—podcasts, YouTube videos, news, TV shows—you'll hear idioms constantly. Native speakers use them without thinking, which means you need to recognize them on the fly.

Podcasts and interviews

Podcast hosts love idioms because they add personality and color to speech. You'll frequently hear: 'at the end of the day' (ultimately), 'the bottom line' (the main point), 'food for thought' (something to think about), 'play it by ear' (decide as you go), and 'touch base' (to briefly check in with someone).

YouTube and social media

Content creators use casual idioms to connect with their audience: 'no-brainer' (an obvious choice), 'game-changer' (something that changes everything), 'spill the tea' (share gossip), 'the whole nine yards' (everything, the full amount), 'hit the nail on the head' (to describe something exactly right).

BBC News and journalism

News media uses idioms in headlines and commentary: 'a double-edged sword' (something with both advantages and disadvantages), 'the tip of the iceberg' (a small part of a much larger problem), 'a watershed moment' (a turning point), 'level the playing field' (to make a situation fair for everyone).

The best way to learn media idioms isn't from a list—it's from hearing them in context, which is exactly what FlexiLingo is designed for.

10Common Idiom Mistakes and Misuses

Using idioms wrong can be worse than not using them at all. Here are the most common mistakes learners make with English idioms.

Mixing up similar idioms

Learners often blend two idioms together: 'We'll cross that bridge when we burn it' (mixing 'cross that bridge when we come to it' and 'burn bridges'). Or 'It's not rocket surgery' (mixing 'rocket science' and 'brain surgery'). Each idiom has a fixed form—learn the exact wording.

Translating idioms from your language

Every language has idioms, but they rarely translate. Persian 'giving someone a watermelon' means nothing in English. Arabic 'the camel doesn't see its own hump' has no English equivalent. If you translate your native idioms literally into English, native speakers won't understand.

Using idioms in formal writing

Most idioms are informal. Using 'break a leg' in a business report or 'spill the tea' in an academic essay sounds unprofessional. Save idioms for conversation, informal emails, and casual writing. In IELTS Writing Task 2, avoid idioms—use precise, formal vocabulary instead.

Overusing idioms

Using too many idioms in one conversation sounds unnatural—even for native speakers. One or two per conversation is natural. Dropping five idioms in a single paragraph sounds like you swallowed a phrase book. Quality over quantity.

11How to Learn Idioms Naturally With FlexiLingo

The most effective way to learn idioms isn't memorization—it's encountering them in real English. When you hear 'break a leg' in a podcast or 'the tip of the iceberg' in a BBC report, the context makes the meaning click instantly. FlexiLingo is built for exactly this kind of learning.

Encounter idioms in real content

When you listen to BBC, YouTube, or Spotify content with FlexiLingo's synced subtitles, you'll see idioms as native speakers actually use them—in natural sentences, with natural intonation. This context-first approach is how children learn idioms: hear it, see it used, understand it.

Save idioms with full context

When you hear an idiom that's new to you, save it with one click. FlexiLingo preserves the sentence, the audio, and the timestamp. When you review later, you don't just see 'break the ice'—you hear the full sentence and remember exactly how it was used.

Build your personal idiom collection

Over time, your saved phrases become a personal idiom dictionary—organized by when you found them, with real audio examples. This is far more useful than a textbook list because every idiom comes with a context you personally experienced.

Spaced repetition for long-term memory

Saved idioms enter FlexiLingo's SRS system. Idioms you recognize easily get reviewed less often; ones you struggle with get reviewed more. Within weeks, the most common idioms become part of your active vocabulary.

Frequently Asked Questions

How many English idioms do I need to know?

For everyday conversation: about 100–200 will cover most situations. For professional settings: add another 50–100 business and workplace idioms. For advanced fluency (C1–C2): 300–500 idioms will make you comfortable with virtually any native English content. You don't need to learn all 25,000+ English idioms—focus on the most common ones first.

Should I use idioms in IELTS Speaking?

Yes, but carefully. Using 1–2 natural, well-placed idioms in your IELTS Speaking test can boost your Lexical Resource score (it shows range). But using them incorrectly or unnaturally will hurt you. Only use idioms you're confident about. For IELTS Writing, avoid idioms entirely—examiners prefer precise academic vocabulary.

Are idioms the same in British and American English?

Most common idioms are understood in both, but some differ. British: 'storm in a teacup' = American: 'tempest in a teapot' (a big fuss about nothing). British: 'touch wood' = American: 'knock on wood' (hoping for good luck). British: 'Bob's your uncle' (and there you have it) has no American equivalent. When in doubt, use the idiom you learned—both will generally be understood.

Can I create my own idioms?

Technically, no. Idioms are fixed expressions that a community agrees on. If you say 'break a hand' instead of 'break a leg,' people won't understand the intended meaning. However, language is creative, and native speakers sometimes play with idioms intentionally for humor ('it's not rocket surgery' is a deliberate blend that's become a joke). As a learner, stick to the standard forms.

What's the difference between idioms, slang, and phrasal verbs?

Idioms are fixed phrases with figurative meanings ('break the ice'). Slang is informal vocabulary that changes rapidly ('slay,' 'no cap,' 'ghosting'). Phrasal verbs are verb + preposition/adverb combinations ('give up,' 'look into,' 'take off'). There's overlap—some phrasal verbs are idiomatic ('let the cat out of the bag' contains a phrasal verb). But the categories are distinct: idioms = figurative phrases, slang = informal words, phrasal verbs = verb combinations.