what's this about
idiom
—used before stating something that one has heard about to ask if it is true, if it exists, it really happened, etc.
What's this I hear about your getting engaged?
What's this about a letter? You never told me she wrote you a letter.
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“What's this about.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/what%27s%20this%20about. Accessed 8 Nov. 2024.
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