Definition of never/not in a thousand/million/billion years
informal
—used as a strong way of saying that something is extremely unlikely or impossible Never in a million years did I think she would quit her job.
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“Never/not in a thousand/million/billion years.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/never%2Fnot%20in%20a%20thousand%2Fmillion%2Fbillion%20years. Accessed 16 Oct. 2021.
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