Niellon Posted in N Best definition Niellon A dirty metis man who preys on the weak and takes their scalps. Often refered to as Niel, or Frodo Baggins. That guy stole my raptors, he might as well have been Niellon. How satisfied are you with the definition? Looking for Niellon meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 35 times.