"That's arm-and-leg-costing! "——A weird idea struck me
(umm..it's just so weird, LOL)

A few days ago, I learned how to use the "-" in English. Such as "save time" and "time-saving", "prepare well" and "well-prepared", "crushed ice-making machine" and "crushed-ice-making machine".

I also picked up an idiom "It costs an arm and a leg". So~, does the adjective "arm-and-leg-costing" exist? Or could native speakers understand if someone uses it?

Question

"That's arm-and-leg-costing! "——A weird idea struck me
(umm..it's just so weird, LOL)

A few days ago, I  learned how to use the "-" in English. Such as "save time" and "time-saving", "prepare well" and "well-prepared", "crushed ice-making machine" and "crushed-ice-making machine".

I also picked up an idiom "It costs an arm and a leg".   So~, does the adjective "arm-and-leg-costing" exist? Or could native speakers understand if someone uses it?

Answer

Ha!
English is flexible, but not always. 
So the answer is 'no', that is not a valid/real adjective in English.
We would just say "very expensive" or "wildly expensive"

If you used it, people would most likely understand, although it would take them a second to do so.

Answers · 2

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