need head examined
need (to have) your head examined
you have done something that will make others think you stupid or strange Anyone who pays that much for a pair of jeans needs to have her head examined.
Usage notes: usually used as a humorous criticism
need your head examined/examining(British, American & Australian humorous) also need your head testing (British humorous)
if you tell someone they need their head testing, you think that they are crazy because they have done something stupid or strange You need your head examined if you're willing to spend £120 on a pair of jeans.