need (to have) your head examined
US /niːd tə hæv jʊər hɛd ɪɡˈzæmɪnd/
UK /niːd tə hæv jʊər hɛd ɪɡˈzæmɪnd/

1.
需要去檢查一下腦子, 瘋了
used to say that someone is acting in a very foolish or crazy way
:
•
If you think that's a good idea, you need your head examined.
如果你覺得那是個好主意,你需要去檢查一下腦子。
•
He wants to quit his stable job to become a street performer? He really needs his head examined!
他想辭掉穩定的工作去當街頭藝人?他真的需要去檢查一下腦子!