勘かんを働はたらかせる

expression, ichidan verb

use one's intuition; use one's instinct; use one's head

Refers to relying on one's gut feeling, sixth sense, or practical judgment to figure something out or make a decision.

• 彼かれは勘かんを働はたらかせて、危き険けんを察さっ知ちした。

  He used his intuition and sensed the danger.

• この問もん題だいは、少すこし勘かんを働はたらかせれば解とけるよ。

  You can solve this problem if you use your head a little.