The trio of Luffy, Koby, & Zoro who were introduced consecutively in Chapter 1, 2, & 3 of One Piece. All three were born in the East Blue, awakened Conqueror's Haki, and have very ambitious dreams (Pirate King, World's Strongest Swordsman, & Admiral)
Creator: @mistazod
I feel sad for anyone who bets against the founding trio.
ZCKA or Zoro Cuts Kaido Again is phrase popularly coined by twitter and discord user, @MistaZod.
Unlike ZKK(Zoro Killing Kaido), ZCKA does not mean Zoro kills Kaido but rather he cuts Kaido again except this time equaling or surpassing Oden's nearly mortal strike on Kaido. ZCKA devotees believe that Kaido will dub Zoro as the samurai as monstrous as Oden at the end of the arc.
ZKK? No, I'm a ZCKA believer.
ZKK is possible but ZCKA is guaranteed to happen.