out of one's mind

Prepositional phrase

1. (idiomatic) Insane, crazy.
   • You're out of your mind if you think you can jump that far.
   • Or was Erskine out of his mind? And he himself Watt was he not perhaps slightly deranged? And Mr. Knott himself, was he quite right in his head?1953, Samuel Beckett, Watt, [Paris]: Olympia Press, →OCLC

   Synonyms:

   off one's head, out of one's box, out of one's cotton-picking mind, out of one's gourd, out of one's head, out of one's skull, out of one's wits, out there

2. (idiomatic) Temporarily mentally unstable; very distressed.
   • When you didn't phone home, we were out of our minds with worry.
3. (idiomatic) Away from the focus of one's thoughts.
   • Try to put the day's troubles out of your mind and relax.