Ciaossu mean "chaos". But in Japanes they say "Kaossu" (or something like that) Reborn use "Ciaossu" because he is kid and he does not pronounce correctly. "Chaos" is Adult Reborn saying.
by Tsuna-Kun June 22, 2019
"ciaossu" means "ciao" from italy and "ossu" from japan,
Its a way to say hi
From the Manga and Anime. Katekyo Hitman Reborn!
Its a way to say hi
From the Manga and Anime. Katekyo Hitman Reborn!
by Gokudera July 13, 2008