"Kirisute Gomen" is a song by metalcore

Metalcore

Metalcore is a subgenre of heavy metal combining various elements of extreme metal and hardcore punk. The name is a portmanteau of the names of the two genres. The term took on its current meaning in the mid-1990s, describing bands such as Earth Crisis, Deadguy and Integrity...

 band, Trivium

Trivium (band)

Trivium is an American heavy metal band from Orlando, Florida, formed in 1999. Signed to Roadrunner Records, the band has released five studio albums, eleven singles, and twelve music videos...

, released as the first single from their fourth album, Shogun. It was made available as a free digital download through the Roadrunner Records

Roadrunner Records

Roadrunner Records is an American record label that concentrates primarily on heavy metal bands. It is currently a subsidiary of Warner Music Group.-History:...

 website for 24 hours on .

The phrase "Kirisute Gomen

Kiri sute gomen

Kiri sute gomen Kiri sute gomen Kiri sute gomen (斬り捨て御免 or 切り捨て御免: literally, "authorization to cut and leave" (the body of the victim) is an old Japanese expression dating back to the feudal era right to strike. Samurai had the right to strike with sword at anyone of a lower class who was...

" is of Japanese origin. It means, "authorization to cut and leave" and was often said by samurai before they made their kill.