when hell freezes over


informal + impolite
used to say that one thinks that something will never happen
I'll apologize when hell freezes over.

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Cite this Entry

“When hell freezes over.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/when%20hell%20freezes%20over. Accessed 31 May. 2023.

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