snot-nosed adj 1: (used colloquially) overly conceited or arrogant; "a snotty little scion of a degenerate family"-Laurent Le Sage; "they're snobs--stuck-up and uppity and persnickety" [syn: {bigheaded}, {persnickety}, {snooty}, {snot-nosed}, {snotty}, {stuck-up}, {too big for one's breeches}, {uppish}] 2: dirty with nasal discharge; "a snotty nose"; "a house full of snot-nosed kids" [syn: {snotty}, {snot-nosed}]