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nut house

or nut·house

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noun Slang.
  1. a mental hospital; insane asylum.
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Origin of nut house

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for nut house

Historical Examples

  • "Say, this island'll be a nut-house if this keeps up," Pete Murphy said irritably.

    Angel Island

    Inez Haynes Gillmore