Top Definition
Ritual suicide by disembowelment carried out by samurai. Literally means "stomach cutting." The samurai committing seppuku would shove a dagger such as a tanto into their stomach while another samurai acted as their second by lopping off their head.
Seppuku is also reffered to as Harakiri
by ♫ Highway to Hell ♫ July 07, 2011

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Ritual suicide by disembowelment. Some who commit seppuku have a second person decapitate them after the one who kills himself commits the disembowelment.
"After losing the battle, he felt seppuku was the only way out."
by crono June 29, 2003

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Honorable suicide commited by Samurai after they have shamed themselves or are failed their masters. Samurai could be ordered to commit suicide by their lords (Daimyo)
The samurai would disembowel himself, and when the pain got to be too much to where he might shame himself, his second would decapitate him.
by Maness October 30, 2003

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Ritual suicide by stabing them self in the stomach formerly practiced by Japanese samurai. Also called hara-kiri.
I plan to die by commiting seppuku
by Corey D. February 01, 2004

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"Seh-poo-koo"

A Japanese suicide ritual where you cut the belly open. It is believed that if you commit suicide this way, it will let your spirit exit the body at ease.
My daughter died because she commited Seppuku.
by NoeruChan June 23, 2016

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A masturbatory sexual act in which a man penetrates the outer sphincter of his anus with the tip of his beef whistle.
"Boy, I could sure go for some seppuku right now", thought Henry.
by HAILGOKU February 01, 2017

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the act of eating Japanese takeout naked in the middle of the road in order to impress friends and bestow honor to your family.
I commited Seppuku last night and my parents joined in.
I always do Seppuku every morning before work.
by SeppukuMan July 29, 2013

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