the twin blade weilding monster from agrabah in disney's Kingdom Hearts game for the PS2. If you are not careful, this monster will kill you in a few hits.
oooo...help there is a little zisa in my pants and it won't come out.
by icegoo April 25, 2004
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1. Something that is very hard or difficult.

2 An extreme boner.

Comes from Kurt Zisa, a powerful and extremely difficult boss in the PS2 games Kingdom Hearts & Kingdom Hearts Final Mix.
"Damn, that Chem 2 exam was a fucking zisa. There's no way in hell I'm passing this class."
"I watched so much porn last night that it gave me a zisa that lasted for hours."
by zissa December 15, 2021
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