鼻はなをつまむ

expression, godan verb (-mu)

hold one's nose; pinch one's nose

Describes the action of pinching the nostrils shut, often to block a smell or when diving into water.

• 臭においがきつくて、思おもわず鼻はなをつまんだ。

  The smell was so strong that I instinctively held my nose.

• プールに飛とび込こむ前まえに鼻はなをつまんでください。

  Please pinch your nose before jumping into the pool.