Newt Gingrich committed political seppuku shortly after announcing his candidacy.
From the forbes.com
Commander Manabe Samanosuke committed seppuku aboard his burning, sinking ship.
From the en.wikipedia.org
Kira was presented with the same knife which Lord Asano used for his seppuku.
From the en.wikipedia.org
They need scorched earth accountability taken just short of ritual seppuku all around.
From the forbes.com
Mr Kikukawa's symbolic seppuku was not, therefore, much of a surprise.
From the economist.com
Sometimes a daimyo was called upon to perform seppuku as the basis of a peace agreement.
From the en.wikipedia.org
Many of the soldiers committed seppuku or simply blew themselves up with hand grenades.
From the en.wikipedia.org
Perhaps a report on these kee-ids will look into the future of seppuku before it gets worse.
From the newscientist.com
Hijikata found enough proof against Niimi in these matters and ordered him to commit seppuku.
From the en.wikipedia.org
More examples
Harakiri: ritual suicide by self-disembowelment on a sword; practiced by samurai in the traditional Japanese society
A form of ritual suicide by disembowelment, practiced by Japanese samurai, especially to rid oneself of shame or as a means of protest
Cut belly, ritual suicide with sword, also called harakiri
Either voluntary (to expiate serious failure) or obligatory suicide (instead of execution) to regain one's honor in death. A privilege reserved for the samurai class. Commonly referred to as hara-kiri.
Is a more correct expression for an act of suicide performed by the process of cutting open the abdomen. ...
Ritual self-disembowelment. In this way samurai were able to atone for their misdeeds in an honourable fashion
Literally, "ritual disembowelment"; a type of culturally accepted suicide associated with samurai warriors in feudal Japan who sacrificed their lives to maintain the honor or reputation of their lords, also known as hara-kiri. See also altruistic suicide.
Ritualistic suicide performed by samurai
Ritual suicide: the act of killing oneself by slitting open his belly.