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rabbit hole

[ rab-it hohl ]
/ ˈræb ɪt ˌhoʊl /
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noun
a tunnel made in the ground by a rabbit; a rabbit burrow.
Informal. a strange, disorienting, or frustrating situation or experience, typically one that is difficult to navigate: I had a history of depression and occasionally fell down dark, deep rabbit holes from which only medication and therapy could pull me out.I have been down the rabbit hole of building a new home.
Informal. a time-consuming distraction of one's attention as happens when clicking through online links, following social media posts, or pursuing information: After diving down an internet rabbit hole and poring over treatments, risks, and so on, she felt even more panicked.
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Origin of rabbit hole

First recorded in 1660–70; def. 2 was first recorded in 1935–40, from Lewis Carroll's Alice's Adventures in Wonderland
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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