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sour gnat

noun
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Definition of sour gnat

chiefly Midland
: any of various minute irritating insects (such as an eye gnat or drosophila)

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“Sour gnat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sour%20gnat. Accessed 29 Sep. 2020.

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