berserk
🇺🇸
/bərˈzɜːrk/
🇬🇧
/bəˈzɜːk/
extremely upset or out of control
When he lost his phone, he went berserk.
彼が電話を失った時、彼は逆上した。
super excited or hyper
She went berserk when she heard her favorite band was coming to town.
彼女が一番好きなバンドが町に来ると聞いたとき、彼女は逆上した。