Definition of "moa"

moa

/ˈmɒʌ/

noun
plural moas
1. Any of several species of large, extinct, flightless birds of the family Dinornithidae that were native to New Zealand; until its extinction, one species was the largest bird in the world.
  Quotations
  The moas (order Dinornithiformes) of New Zealand are likewise extinct but almost certainly some still survived when Tasman first sighted the islands in 1642.
  2000, Errol Fuller, Extinct Birds, Oxford, page 29
2. (Internet slang, uncommon) An extremely tall individual.