H-annon

a common erotic trait or the doujin or hentai parody of a place, character, setting or subject from a series commonly written or illistrated from multiple people, usually seen on rule 34 or Nhentai. as oppose to how its portrayed in cannon

sakura haruno having large breast has become H-annon as opposed to the original series

H-annon

the hentai or phonographic version of a character, place or setting of a series. so common that people just accept it.
commonly created by hentai artist who commonly design characters iin a certain way contrary to there cannon counter parts.

its H-annon for sakura haruno to have big breast despite being flat chested in the original naruto series.