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1.
An anime fan or fan of sci-fi in general who has an obsession with mecha - generally, anything mechanical. Mecha most commonly refers to giant humanoid robots, but can also refer to body-encasing armor and the like.
See Gundam, Neon Genesis Evangelion or Gasaraki.
by Stephan Lewin January 14, 2004
 
2.
Someone who gets off on Mecha Anime. See Mecha and Anime in the list.
ie. Matt
by YoMamma July 07, 2003