トチ狂くるう

godan verb (-u), intransitive verb

lose one's senses; go mad; go off the rails

Colloquial, often used when someone acts crazy, loses control, or does something wildly irrational. Can be used seriously or hyperbolically.

• あいつ、急きゅうにトチ狂くるって叫さけび出だした。

  He suddenly lost it and started screaming.

• そんな無む茶ちゃな計けい画かくを立たてるなんて、トチ狂くるってるよ。

  Coming up with such a reckless plan—you've gone off the rails.

godan verb (-u), intransitive verb

fool around; mess around; lark about

Dated usage for playful, silly, or frivolous behavior; now largely replaced by words like ふざける or 遊び回る. Rare in modern speech.

• 昔むかしの小しょう説せつでは、若わか者ものたちがトチ狂くるって騒さわぐ場ば面めんが出でてくる。

  In old novels, there are scenes where young people lark about and make noise.