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Idiom

Cost an Arm and a Leg: Origin and Meaning

Meaning
If something costs an arm and a leg, it is extremely expensive.
Origin
cost an arm and a legThe exact origin of this idiom is unknown; however, most people believe that it started being used around the time of the First or Second World War. There were many soldiers who lost an arm and a leg during the war – this was a very high ‘cost’ to pay for their country!
Examples
“I think we should go to Greece in May. Flying there in the summer will cost us an arm and a leg!”

“I finally found the designer bag I’ve been looking for. It cost me an arm and a leg though!”

Greg: “I think I’m going to buy a cheap second-hand car this weekend.”
Matt: “Just be careful which one you get. I bought a second hand car a couple of years ago and I’ve had so many problems with it. The repairs have cost an arm and a leg!”