Citations:out of one's tree

Adjective: "(idiomatic) crazy; unhinged; irrational"

 * 2003, Diane Chamberlain, Kiss River, Mira (2003), ISBN 9780778312857, page 79:
 * Clay had learned to bring a book with him when he took Henry shopping; otherwise, he would go out of his tree with boredom.
 * 2003, Claire Berlinski, Loose Lips, Random House (2003), ISBN 9781588362919, unnumbered page:
 * Iris seemed fond of Brad—she was clearly congratulating herself for at last having the maturity and self-respect to choose a man who treated her well—but I could tell that she was already bored out of her tree.
 * 2009, Terry Stocker, The Paleolithic Paradigm, AuthorHouse (2009), ISBN 9781449022938, page 324:
 * I, again jokingly finalized: that to believe her own hypothesis, she had to be out of her tree,
 * 2010, Helen Simpson, In-Flight Entertainment: Stories, Knopf (2010), ISBN 9780307957634, unnumbered page:
 * He was singing and sobbing and carrying on, out of his tree with alcohol,
 * 2013, Jim Wheeler, Journeys, Generations, and Cracked Eggs: Journeys, the Call of God, and the Miraculous, WestBow Press (2013), ISBN 9781490805191, page 230:
 * You see, while you're smiling it is hard to think any negative or questionable thoughts about this author or whether this guy with a fantastic egg story is out of his tree.