“Shirokuro Tsukeru”: A Japanese Expression Born from Sumo’s Wins and Losses

Trivia
               

Supervisor・Tsuyoshi Mizuguchi

Former sumo wrestler Shoho Tsuyoshi (real name: Tsuyoshi Mizuguchi). He belonged to the Kasugayama stable, made his debut in 2004, and rose to the rank of Makushita East 4. He also performed the Yumitori-shiki (bow-twirling ceremony) on behalf of Yokozuna Hakuho.
After retiring, he has been actively promoting sumo culture both in Japan and abroad through organizing training sessions, producing the YouTube channel "Osumo Gucchan-neru," and hosting sumo experience events.
He appeared as the character Entori in the Netflix drama *Sanctuary* and has also participated in stage performances.
Currently, he organizes inbound sumo events and shows for international visitors, and also works as a personal trainer, sharing the appeal of sumo while supporting people’s health and well-being.

The Japanese phrase “shirokuro tsukeru” literally means “to make it black and white,” but its real meaning is to decide clearly between victory and defeat, or to settle a matter definitively. Born from the tradition of white stars and black stars in sumo, this expression is now widely used not only in sports but also in everyday life.

The Basic Meaning of “Shirokuro Tsukeru”

The phrase means to eliminate ambiguity and determine a clear outcome. In Japan, it is strongly connected to sumo and other sports. For example, in sumo bouts, there are times when it is hard to tell who won at the edge of the ring. Judges then deliberate and finally declare the winner. That act of making the decision is described as “shirokuro tsukeru.”

In daily conversation, the phrase is used when discussions drag on or when a decision must be made. It expresses a strong attitude of not leaving things vague, but instead producing a definite answer. Because of this, the phrase carries a sense of decisiveness and strength.


White Stars and Black Stars in Sumo

In sumo, wins and losses are recorded as white stars and black stars. The origin lies in the practice of marking wins with white circles and losses with black circles in official records.

ExpressionMeaningWhen It’s Used
White Star (Shiroboshi)A winRecorded for the victorious wrestler
Black Star (Kuroboshi)A lossRecorded for the defeated wrestler

Since every sumo match ends with a win or a loss, sumo is a sport where there must always be a clear result—there is no ambiguity. This characteristic has deeply influenced the spread of the phrase.


Points for Foreign Learners

For foreigners, the expression is not straightforward if translated literally. In English, it is closest to “settle the matter” or “make a clear decision.” However, without knowing the background of white stars and black stars, the nuance may be lost.

Japanese ExpressionClosest English MeaningNuance
Shirokuro Tsukerusettle the matterTo make victory, defeat, or a conclusion clear
White StarvictoryIndicates winning in sports
Black StardefeatIndicates losing in sports

By connecting the phrase to sumo culture, it becomes easier for learners to grasp. It also helps foreigners appreciate not just the language but also a piece of Japanese tradition.


Everyday Uses

The phrase “shirokuro tsukeru” goes beyond sumo and is widely used in everyday life.

  • In a business meeting: “We need to shirokuro tsukeru on this issue.”
  • In a family discussion: “We should shirokuro tsukeru about your school choice today.”
  • Among friends: “Let’s shirokuro tsukeru this debate already.”
SituationExampleMeaning
BusinessDeciding a project directionMaking a definite conclusion
FamilyChoosing education or future pathLeaving no ambiguity
FriendshipEnding a long argumentReaching a decision

This makes the expression very practical in daily conversations, where it signals clarity and resolution.


Expansion of the Expression

While it started in sumo, “shirokuro tsukeru” is now used in law, sports, and society in general. For example, when a court verdict is announced, people may say “the case’s shirokuro was settled.”

FieldUsageExample Sentence
SportsClarifying match results“The championship match’s shirokuro was settled.”
LawIssuing a verdict or ruling“The trial’s shirokuro was decided.”
Daily LifeResolving conflicting opinions“We must shirokuro tsukeru this argument.”

This shows how a phrase born from sumo has spread throughout the Japanese language as a symbol of decision and finality.


Conclusion

The expression “shirokuro tsukeru” comes from sumo’s system of white stars for wins and black stars for losses. It means to make a conclusion clear and eliminate ambiguity. For sumo enthusiasts, it feels natural, and for foreigners, it can serve as a window into Japanese culture. Beyond sumo, it is widely used in sports, law, and everyday decision-making.

Ultimately, the phrase teaches the importance of making clear decisions rather than leaving matters unresolved. Learning this expression not only deepens one’s knowledge of the Japanese language but also offers insight into Japanese values and cultural emphasis on clarity.

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