what's with

idiom

Definition of what's with

informal
1 : what is the reason for (something) (So) what's with the hat?
2 : what is wrong with (someone or something) What's with him? Is he upset?

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Cite this Entry

“What's with.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/what%27s%20with. Accessed 19 Jan. 2021.

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