A blind fan of the manga/anime series " One Piece " who insults other manga/animes that are competitive to it, usually Naruto. They don't accept any bad thing about One Piece and love it in a blind way. That is a Piecetard.
*Weekly Shonen Jump comes out*
Guy: Woah Naruto this week was epic!
Piecetard: Naruto sucks!!!!!!!! oNE piece is betteerr in every way !! sasuke is gay ( even tho there is no proof about that lame claim)