Source : Webster's Revised Unabridged Dictionary (1913)

Snot \Snot\, n. [AS. snot; akin to D. snot, LG. snotte, Dan.
   snot, and to E. snout. See {Snout}.]
   1. Mucus secreted in, or discharged from, the nose. [Low]

   2. A mean, insignificant fellow. [Low]

Snot \Snot\, v. t.
   To blow, wipe, or clear, as the nose.

Source : WordNet®

snot
     n 1: a person regarded as arrogant and annoying [syn: {snob}, {prig}]
     2: nasal mucus