off one's tree

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off one's tree

1. (idiomatic) Crazy; unhinged; irrational.
   • 1989, Robert McLiam Wilson, Ripley Bogle, Arcade Publishing, published 1998, →ISBN, page 192:

     Deirdre was increasingly off her tree in the last sad days of our relationship. Her demands and quirks were ever more extravagant and dislocated.

   • 1994, Tom Wells, The War Within: America's Battle Over Vietnam, iUniverse, published 2005, →ISBN, page 391:

     "These guys were off their tree," David Hawk recalled. At one point, a VMC activist asked the Weathermen what they were really after. "To kill all rich people," Ayers replied.

   • 2010, Anouchka Grose, Why Do Fools Fall in Love: A Realist's Guide to Romance, Tin House Books, published 2011, →ISBN, page 92:

     But after her wedding he goes completely off his tree, runs off into the wilderness and starts ranting in verse and writing poems in the sand with a stick.

   • For more quotations using this term, see Citations:off one's tree.

• out of one's tree
• See also Thesaurus:insane.