go off the deep end

phrase

Definition of go off the deep endnext
as in crack
to yield to mental or emotional stress After months of pressure at work, he went off the deep end.

Synonyms & Similar Words

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Example Sentences

Recent Examples of Synonyms for go off the deep end
Phrase
  • Negotiations on both fell apart earlier this month but could still be revived in the lame duck session.
    — David Sivak, The Washington Examiner, 30 Sep. 2026
  • OpenAI had tried to invest $100 million into the startup after the cyberattack, though talks fell apart in the early stages, sources told CNBC.
    — Kai Nicol-Schwarz, CNBC, 30 Sep. 2026
Phrase
  • While some Raiders fans are losing it, many others are simply accepting that is how things are these days for the team.
    — Pete Grathoff, Kansas City Star, 1 Oct. 2026
  • The film followed the trials of a struggling keyboardist who gets hold of a magical synthesizer, only to lose it and embark on a picaresque journey to get it back.
    — Josephine Reisman, Vulture, 24 Sep. 2026
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

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Cite this Entry

“Go off the deep end.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/go%20off%20the%20deep%20end. Accessed 6 Oct. 2026.

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