Adjective has 2 senses

• snot-nosed(s = adj.all) bigheaded, persnickety, snooty, snotty, stuck-up, too big for one's breeches, uppish - (used colloquially) overly conceited or arrogant; "a snotty little scion of a degenerate family"; "they're snobs--stuck-up and uppity and persnickety"


• snot-nosed(s = adj.all) snotty - dirty with nasal discharge; "a house full of snot-nosed kids"; "a snotty nose"