snot UK /snɒt/US /snɑt/noun 5verb 2forms 3phrases 2 noun5 •(informal) Mucus, especially mucus from the nose.Once, I remember, the little fair-haired boy had a choking fit at dinner, and a stream of snot ran out of his nose on to his plate in a way horrible to see. — 1948 •(slang, disapproving) A contemptible child.With no warning a gang of little snots — none larger or older than I was — threw me to the ground, pulled my knickers below my knees — without any explanation, and allowed me to get up. — 2010 •(slang, vulgar) Semen. •(dialect, Northern-England) The flamed out wick of a candle. •(disapproving, no longer used) A mean fellow. verb2 •(informal) To sniff or snivel; to produce snot, to have a runny nose.I was snotting all into my mouth and having to eat it, silently shuddering. — 2014 •(informal) To blow, wipe, or clear (the nose). formssnotted · snotting · snots Phrases with snot snot-nosedYoung and arrogant or conceited. snot upTo make something snotty (covered in snot), as a handkerchief or tissue, or to similarly cover with other bodily fluids, like a dog breathing on glass.