Slangora

commit sudoku

Internet humorous slang meaning to commit seppuku (ritual suicide by sword), derived from a deliberate or jokey misreading of 'seppuku' as 'sudoku.' Used loosely online to mean killing oneself or, by extension, making a catastrophically self-destructive decision.

kəˈmɪt səˈdoʊˌku332 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 28, 2026

Internet humorous slang meaning to commit seppuku (ritual suicide by sword), derived from a deliberate or jokey misreading of 'seppuku' as 'sudoku.' Used loosely online to mean killing oneself or, by extension, making a catastrophically self-destructive decision. The humor relies on the mispronunciation being obviously intentional. Typically used hyperbolically rather than literally.

After accidentally replying all with that email, he said he was ready to commit sudoku right there in the conference room.
Origin: Humorous deliberate mishearing/misreading of 'seppuku' as 'sudoku'; a longstanding internet joke. Editorial expansion authored on Slangora.
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#2·Apr 26, 2026

(internet slang, humorous) To commit seppuku.

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#3·Apr 26, 2026

(by extension) To commit suicide by any means.

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Viral internet speak — memes, ratios, main-character moments, and the algospeak of every platform from Twitter to Reddit to TikTok comment sections.

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