頭あたまのいかれた

expression, noun-modifying (irregular)

insane; crazy; out of one's mind

Colloquial, often derogatory expression describing someone as mentally unstable or acting irrationally. Used prenominally to modify a noun.

See also: いかれる

• あの頭あたまのいかれた男おとこは、また大おお声ごえで叫さけんでいる。

  That crazy guy is shouting loudly again.

• 頭あたまのいかれたことを言いうな。

  Don't say such insane things.