touched in the head

touched in the head

Mentally deranged or unstable; somewhat crazy. Often used sarcastically or jocularly; potentially offensive if used in earnest. The loss of his children and wife in the accident left him a bit touched in the head. People think I'm touched in the head because of the way my eyes deviate slightly outward. You're touched in the head if you think you'll get a loan with the bank for that much money.
See also: head, touched

touched in the head

Also, touched. A little bit crazy, somewhat deranged, as in I think the war left him a little touched in the head. [Late 1800s]
See also: head, touched