Top definition
A Bleach term than is used to exaggerate bankai by adding cookie into the name.

In any pointless RP forum fight when the one with the cookie throws said cookie at the other's bankai the one that threw the cookie gets the Bankookie.
*Joe throws a cookie at Ichigo's bankai* Bankookie! Tensa Zancookie..

Ichigo: HOLY @#$%!!

*Joe kills Ichigo in an instant with the almighty bankookie release*
by Depurified May 18, 2008
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