"Cost an arm and a leg"
I don't have much money now, my new car cost me an arm and a leg!
A: Do you want to go to that new Shopping centre?
B: No, everything in there costs an arm and a leg!
A: Are you looking for anything specific, sir?
B: Just some basic white t-shirts, nothing that'll cost an arm and a leg.
What does "Cost me an arm and a leg" mean?
We use 'cost an arm and a leg’ when something is very expensive, it's a set phrase.
We often use it describe a situation where we have to pay a lot of money, for example 'My car insurance cost me an arm and a leg!'
If we are directly describing an object we use adjectives, for example an 'expensive computer'.
It doesn't really mean we have to pay with our arms and legs!