A meme character based on Dorothy from Goddess of Victory: Nikke. Has also been referred to as "Dororong", "Dororo", and "La creatura" (a nickname it shares with Neco-Arc). Its appearance was based on a peculiar fanart of Stella Unibell from Soulworker as a chibi dog.
It originated from the Korean NIKKE forums but has quickly spread to other communities such as Blue Archive, Honkai: Star Rail, and Hololive. The meme also gained attention from the developers themselves, Shift Up with the CEO, Kim Hyung Tae and his wife KKUEM are seen holding a Santa-esque Doro plush alongside Shuhei Yoshida. The 2024 April Fools event for the game also features Matis in the form of Doro as Syuen's burst skill.
Note: This tag is also applicable to any other characters that got the "Dorofication" treatment, not just Dorothy's Doro.