Board Thread:General Discussion/@comment-24882930-20160409075351/@comment-1978840-20160415183916

Wri-El wrote: How about Yachiru? Yes. The name of his bankai.

The original Yachiru from whom Zaraki took the name to give to her was 八千流 = Eight Thousand Flows. After all we learned from Yama-san that not every bankai name has to be a variation of the shikai name. We already knew about that when Sui-Feng showed her Bankai. Personally, if the name was just something added to his Shikai name, I'd have gone with Abare Nozarashi. I do like the concept of it being coincidentally being the name he gave her, though. The quote from Tite Kubo would be a cool name for it, too: Demon of the Blood-Thirsty Sword.