Kushina: I was teh second Kyuubi Jinchuuriki!
Naruto: HAX!!!
First Hokage's Wife: And I was the first!
Naruto: OMGWTFBBQ!!!
Kishimoto: ROFLCOPTER!!!!
Readers: Fuck you, Kishimoto!
To kill off a villain in your fiction, either right after turning them into a good guy or before revealing that they actually were working for the side of good all along (usually meaning they were a spy, watching the real villains from the inside of their evil organization.)
This word originates from the name Masashi Kishimoto, the author of the popular manga series Naruto