Idiom – Cost An Arm And A Leg

English Idiom – Cost an arm and a leg or An arm and a leg.

Meaning – Very expensive. This expression is used when something costs a lot of money. This might be an expensive item or possibly something you pay too much money for.

You wouldn’t give up an arm and a leg for any amount of money – this is likely where this idiom comes from.

We can use an arm and a leg to refer to a large amount of money. I don’t want to spend an arm and a leg on a new car!

Similarly we could say I’d give my right arm for (something). This expression is used when you really, really want something. I’d give my right arm for a brand new bimmer!


When could you use this idiom?

  • When you’ve spend too much money on something fancy or luxurious.
  • If your holiday was very expensive.
  • When you see someone with a new car or a new house.
  • If you are looking at a friend’s engagement ring!


  • “My engagement ring is beautiful! It must have cost my boyfriend an arm and a leg!”

In The News:

Test Drive: Volvo S90 T6 will cost you an arm and a leg, but could save your life


  • Is there an idiom like this in your country?

What is an idiom?

An idiom is a word or phrase that is not taken literally.  An idiom is an expression that cannot be understood from the meanings of its individual words, but has a separate meaning of its own.

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FunkyEnglish is a website that helps you improve your English. We offer quick lessons that teach idiomsslangphrasal verbs and more. Visit our homepage to see our latest articles, or use the menu to find specific content!

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