How to Say “Nuts” in Japanese

狂っている
kurutte iru
The Japanese way to say "nuts" (in the sense of being insane) is 狂っている (kurutte iru).
This term can describe a person's mental state or a situation and system that is behaving nonsensically or erratically.
Meaning: insane (adj)

How does it change in a sentence?

In casual spoken Japanese, the "i" in the continuous form 狂っている is often dropped, resulting in the form 狂ってる.

How do you pronounce it?

kurutte iru

Did you know?

  • When used to describe a person, the term is extremely blunt and can carry a much stronger stigma than saying someone is 'nuts' in English.
  • The verb 狂う can also describe mechanical or natural systems 'going haywire', such as a clock losing its rhythm or a storm behaving erratically.
  • Unlike the English 'nuts' which can describe an enthusiastic fan, using 狂っている for enthusiasm is far too extreme and would cause genuine alarm.

Examples in context

  • 彼は頭が狂っている。
    Kare wa atama ga kurutte iru.
    He is insane.
  • そんな考えは狂っている。
    Sonna kangae wa kurutte iru.
    That way of thinking is insane.
  • あいつの言動は狂っている。
    Aitsu no gendō wa kurutte iru.
    His behavior is insane.

Example conversation

Ren and Himari are looking at a very expensive menu.

  1. 蓮 Ren

    このパスタ、一杯で五千円だよ。
    Kono pasuta, ippai de gosen-en dayo.
    This pasta is five thousand yen a bowl.
  2. 陽葵 Himari

    えっ、それは狂っているね。
    E, sore wa kurutte iru ne.
    What, that's nuts.
  3. 蓮 Ren

    本当に信じられない値段だよね。
    Hontou ni shinjirarenai nedan dayone.
    It's really an unbelievable price.
  4. 陽葵 Himari

    別の店に行こう、蓮。
    Betsu no mise ni ikou, Ren.
    Let's go to another restaurant, Ren.
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Thomas Juan
Thomas JuanHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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