it'll cost (someone)
idiom
informal
: it will cost (someone) a lot of money
I can get the part he needs, but it'll cost him.
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“It'll cost (someone).” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/it%27ll%20cost%20%28someone%29. Accessed 8 Feb. 2025.
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