手て鼻ばな

noun

blowing one's nose with one's fingers

Refers to the act of blowing one's nose using one's fingers, typically by closing one nostril with a finger and blowing forcefully through the other. Often done outdoors or when a tissue is unavailable.

• ハンカチがなかったので、仕し方かたなく手て鼻ばなをかんだ。

  I didn't have a handkerchief, so I had no choice but to blow my nose with my fingers.