expression, godan verb (-mu)
lead a man around by the nose; have a man wrapped around one's finger
Idiomatic expression describing a woman manipulating or controlling a man, often through charm or cunning. The image is of leading someone by the nose hairs.
彼女は彼の鼻毛を読んで、何でも言うことを聞かせる。
She leads him around by the nose and makes him do whatever she says.
That man who is being led around by the nose by that woman is pitiful.