off one's rocker
phrase
: in a state marked by extreme confusion or mental unsoundness
… he felt dizzy, slightly off his rocker at this extraordinary assailment of his senses.—
Bernard Malamud
Bernard MalamudCite this Entry
“Off one's rocker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/off%20one%27s%20rocker. Accessed 21 Dec. 2025.
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