15 Essential Idioms | Everyday Expressions




Idioms are often used by native speakers in conversation and they can always be found in TV series, books and films. If you want to have a good command of the English language, it’s important that you get to grips with some of them and understand what they really mean.

Some of you might be asking, "what even is an idiom? Anything thing that sounds that close to idiot, can't be that great...". Well, An idiom is a commonly used expression whose meaning does not relate to the literal meaning of its words. They use language in an unusual and imaginative manner and need to be learnt as a whole otherwise they're difficult to understand.

Let’s have a look at some of the most frequently used idioms in the English language. Once your done, there's an exercise sheet for you to fill in and check what you've learnt.



The ball is in your court

Meaning: it's your responsibility now; it's up to you.

This idiom refers to life rather than a sport though. If you’ve got the ‘ball’, the choice is yours and someone is waiting for your decision.

Use in context:

  • I've done all I can, now the ball's in your court.

  • She's already apologised, now the ball's in his court.

Through thick and thin

Meaning: to be loyal no matter what.

Often used to describe families or BFFs, ‘through thick and thin’ means that you’re by each other’s side no matter what happens, through the bad times, as well as the good.


Use in context:

  • My best friend has supported me through thick and thin.

  • My husband has supported Liverpool through thick and thin. He is a true fan.

Cool as a cucumber

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Cool as a cucumber.

Meaning: calm and composed, especially under stressful situations. If you're as 'cool as a cucumber' it means that you're very laid back, without any worries and not affected by pressure.

Use in action:

  • She was as cool as a cucumber during her job interview.

  • Ronaldo was as cool as cucumber as he scored the match-winning penalty.

Over the moon

Meaning: extremely happy; excited.

Use in action:

  • The school football team won two championships. They are over the moon!

  • She was over the moon with her new iPhone that she got for her birthday.



It takes two to tango

Meaning: both parties involved in a situation or argument are equally responsible for it.


The phrase refers to the South American tango dance, which requires two partners to perform.

Use in context:

  • Don't blame me for the argument. It takes two to tango! You are equally responsible.



Hit the sack

Meaning: To go to bed.


One of my favourite expressions. When you've had a long day and all you want to do is curl up in your own bed and close those eyes!

Use in context:

  • Guys, I’m shattered. I think it's time for me to hit the sack.

  • Where’s Danny? Oh he hit the sack about half an hour ago.

On the ball

Meaning: To be quick to understand and react to things.


This phrase probably came from sports, when players were told to 'keep their eyes on the ball'. To stay focused and be at their best.


Use in context:

  • I didn't sleep well last night and I'm not really on the ball today.

  • He has done a great job. He was really on the ball.


Piece of cake


Meaning: To be very easy to do or accomplish. Something that's a 'piece of cake' is as easy as eating a delicious piece of cake would be.


Use in context:

  • I was finished really early, the exam was a piece of cake!


Mmmmmm... cake


Miss the boat

Meaning: It’s too late. If you were too slow to take advantage of an opportunity, or too slow to act, then you 'missed the boat'! You don't want to miss the boat...