>>2545227It originates from an anime called Rozen Maiden desu and the character is Suiseiseki who is the third Rozen Maiden doll, around 2005 on /b/ it became popular to spampost this character in threads to derail them, or fill the catalog. the reason you see "desu desu desu" is because Suiseiseki has that speech quirk where she completes her sentences in "desu". the meme itself has died and comeback for years, most desufags are not around anymore. Grew up and whatnot desu~
