(stark) raving mad
US /ˈstɑːrk ˈreɪvɪŋ mæd/
UK /ˈstɑːrk ˈreɪvɪŋ mæd/

1.
徹底瘋了, 完全瘋癲
completely mad or insane
:
•
He must be stark raving mad to think he can climb that mountain in winter.
他一定是徹底瘋了,才會覺得他能在冬天爬那座山。
•
The old man was stark raving mad, muttering to himself in the street.
那個老人徹底瘋了,在街上自言自語。