need your head examined

need (one's) head examined

To do, say, or believe something that seems completely crazy, delusional, or stupid. You need your head examined if you don't think giant corporations are in control of our legislators! You spent $400 on a T-shirt? You need your head examined.
See also: examine, head, need

need your head examined

be foolishly irresponsible.
The implication here is that the examination will reveal proof of insanity.
1992 Patrick McCabe The Butcher Boy Any man thinks this work is easy needs his head examined—you want to be tough to work here!
See also: examine, head, need
References in periodicals archive ?
If you still believe he wasn't in the IRA you need your head examined.
If you believe that a ragtag bunch of Muslims got real lucky on that day, you need your head examined.
With bills to pay and a family to care for, most people think you need your head examined to give up a secure monthly pay packet.
I own Motivator - I and 229 other members of the Royal Ascot Racing Club - and if you think that gives me any privileged information, you need your head examined.
5m but you would need your head examined if you were to take so little for him.
You would need your head examined to use their services," warned a police spokesman.
The three invaders, Jukebox Jury, Duncan and Red Cadeaux all have credentials but none as strong as Fame and Glory's and in my opinion you'd need your head examined to bet against Aiden O'Brien's five-year-old.
My advice to anyone who thinks that is go and see a shrink because you need your head examined.
As she was taken to the cells Susanne Ibru, 38, told district judge Nicholas Sanders: "You need your head examined.
If that stat isn't enough to have you confidently backing Fergie's men, then you need your head examined.