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.
I didn't have a handkerchief, so I had no choice but to blow my nose with my fingers.
Standard kanji spelling for this word.
Rarely used kanji form; 洟 is an uncommon character for 'nasal mucus'.
Compound of 手 (hand) and 鼻 (nose), literally 'hand nose'. The exact historical derivation is uncertain, but the word straightforwardly describes the action.