Adjective

• 1. used colloquially of one who is overly conceited or arrogant;

  "a snotty little scion of a degenerate family"-Laurent Le Sage

  "they're snobs--stuck-up and uppity and persnickety"

• 2. dirty with nasal discharge;

  "a snotty nose"

  "a house full of snot-nosed kids"