脳のう直ちょく

noun

acting on impulse; doing instinctively; going with one's gut

Slang term for acting immediately based on a gut feeling or first thought, without overthinking. Often used in casual or online contexts.

• 彼かれはいつも脳のう直ちょくで行こう動どうするから、よく失しっ敗ぱいする。

  He always acts on impulse, so he often messes up.

• そのコメントは脳のう直ちょくで書かいただけだよ。

  I just wrote that comment without thinking.