How to Read “売り言葉に買い言葉”
Uri kotoba ni kai kotoba
Meaning of “売り言葉に買い言葉”
“Selling words to buying words” refers to responding with equally strong words when someone throws provocative or aggressive remarks at you.
This proverb expresses a natural human reaction. When someone subjects you to harsh words, you instinctively become emotional and respond in the same tone. You’ve probably had such experiences yourself. It refers to situations where we “buy into” the words that the other person has “sold,” meaning we fall for their provocation.
This expression is mainly used to describe moments when arguments or disputes begin. What starts as something trivial escalates when one party uses strong words, prompting the other to respond with equally strong words, not to be outdone. It expresses how this exchange of words escalates. Even today, this phenomenon can be seen in various situations such as workplace discussions, family conversations, and interactions between friends.
Origin and Etymology
The origin of “Selling words to buying words” is thought to have emerged from commercial settings during the Edo period. The “selling” and “buying” in this expression represent the fundamental acts of commercial transactions.
Merchants in the Edo period engaged in various negotiations in their daily transactions. When the selling side used aggressive words, the buying side would respond with equally strong words, not to be outdone. Such verbal exchanges in commercial settings are presumed to be the prototype of this proverb.
What’s particularly interesting is the use of words representing opposing positions: “selling” and “buying.” In commercial transactions, sellers and buyers should ideally have an equal relationship, but sometimes their interests would conflict, leading to emotional verbal exchanges.
The background to this expression’s establishment lies in the townspeople’s culture of the Edo period. Among merchants, there was an emphasis on a kind of equal relationship where one would respond in kind to the other party’s approach. The idea that when someone throws provocative words at you, it’s natural to respond at the same level is embedded in this proverb.
Thus, “Selling words to buying words” is a truly Japanese expression born from Edo merchant culture.
Usage Examples
- I got angry at the manager’s harsh criticism and ended up talking back in a case of selling words to buying words
- Marital fights are always selling words to buying words, and we can’t even remember who started it first
Modern Interpretation
In modern society, “Selling words to buying words” has come to involve more complex and serious problems. Particularly in communication on social media and the internet, this phenomenon can spread instantly and develop into irreversible situations.
Online verbal exchanges tend to be more aggressive than face-to-face conversations because you can’t see the other person’s facial expressions or hear their tone of voice. Once words are posted, they remain as records and can potentially be seen by many people. What used to be a problem between only the parties involved has now become something that can develop into online controversies.
Moreover, in modern workplace environments, this is closely related to issues of power harassment and moral harassment. Responding emotionally to unreasonable words from superiors can potentially cause further problems. On the other hand, the importance of appropriately asserting one’s opinions has also increased, requiring us to discern the boundary between “selling words to buying words” and “legitimate counterargument.”
However, the reason this proverb remains relevant today is that human emotional reactions remain unchanged across time. Even as technology advances, the human essence of wanting to rebel against provocation doesn’t change. Rather, precisely because we live in modern times, it’s important to deeply understand the warning meaning of these words and strive for calm responses.
When AI Hears This
“Tit for tat” is an extremely natural phenomenon from a neuroscience perspective. The moment we hear someone’s aggressive words, mirror neurons in our brain instantly react, unconsciously “copying” the other person’s anger and aggression.
Mirror neurons are special nerve cells discovered by an Italian research team in the 1990s that activate as if you were performing an action yourself, simply by observing or hearing others’ actions and emotions. Interestingly, these nerve cells respond not only to physical movements but also to vocal tones and the emotional “temperature” of words.
In other words, the moment someone shouts something at you, your brain automatically begins “preparing to shout back.” This reaction occurs about 0.2 seconds faster than rational judgment, making it the true essence of “tit for tat.”
The same mechanism explains why conflicts on modern social media spread instantly. When people read aggressive posts, mirror neurons in their brains successively copy the “attack mode,” creating a chain reaction of emotional responses. This proverb might be the modern version of the “fight or flight” survival response that humanity possessed long before we acquired language.
Lessons for Today
What “Selling words to buying words” teaches us today is the importance of taking a breath before reacting emotionally. Rather than instantly reacting to the other person’s provocative words, it’s important to have the composure to think about why the other person used such words.
In modern society, communication methods have diversified, making misunderstandings more likely to occur. That’s why we need an attitude of trying to understand the true intent behind the other person’s words. Instead of responding with selling words to buying words, by striving for constructive dialogue such as “Why do you think that?” or “How can we solve this?”, relationships will move in a better direction.
Moreover, this proverb is also an opportunity to practice controlling one’s own emotions. Precisely when you’re about to become emotional, take a deep breath and regain your composure. By doing so, you can deepen trust rather than damage your relationship with the other person. In human relationships, the most valuable people are those who can remain calm even in difficult situations.


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