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不胫而走 (bù jìng ér zǒu), "to walk without legs," is a Chinese idiom for news, rumors, or reputations that spread swiftly on their own. It describes information that travels far and fast despite having no carrier you can see — as if it grew legs and ran. The phrase is used for everything from a scandal that leaks overnight to a good deed that becomes widely known without anyone advertising it. It captures the uncanny speed of word of mouth in a culture that has always valued both reputation and discretion.

Literal Reading of the Characters

不 (bù) means "not"; 胫 (jìng) is "the shin" or "lower leg"; 而 (ér) is a connective "and" or "yet"; 走 (zǒu) means "to walk" or "to run" in classical usage (modern 走 often means "to walk," but older texts use it for rapid movement). So the phrase literally says "without shins, yet it walks" — something moves though it has no legs to move it.

The image is paradoxical on purpose. We expect movement to need a mover; 不胫而走 names the eerie fact that some things propagate by themselves, beyond anyone's control.

Sense and Usage Today

In modern Chinese the idiom almost always refers to the spread of information. A piece of news "不胫而走" the moment it leaves the room; a rumor races through a village; a poem or a kindness becomes known far beyond its origin. The subject is usually intangible — a story, a name, a fact.

Because it stresses speed and autonomy, the phrase often carries a slight note of warning: once something is said, you cannot recall it, for it will run on its own.

The Paradox of Self-Propagating News

The idiom reflects an old observation about reputation (名誉). In close communities, what one person knows soon becomes what everyone knows; gossip and glory alike need no messenger. The saying personifies information as a runner, capturing how helpless speakers feel once words are loosed.

It also hints at quality: truly striking news "has legs," while dull news dies. The idiom thus quietly distinguishes the memorable from the forgotten by whether it can walk.

Use in Storytelling and Media

Writers use 不胫而走 to explain how a character's secret spreads, or how a song becomes a hit without promotion. Journalists use it for stories that go viral before any official release. In daily speech it is a compact way to say "everyone already knows."

The phrase is handy precisely because it needs no explanation of the mechanism — it simply asserts that the news moved, which is often all anyone can say.

A Caution About Speech

Because the idiom shows words escaping control, it reinforces a traditional care with speech. If a careless remark will "walk without legs," then discretion is wise. Proverbs about guarding the tongue pair naturally with it, turning a description of spread into a reason for caution.

At the same time, the saying can comfort the wronged: a true or good act, too, will travel and be known, even without self-promotion.

Relation to Similar Expressions

不胫而走 is close to 声名远扬 (a name spreads far) and to 家喻户晓 (known to every household), though those stress reach rather than speed. It also echoes the English "to spread like wildfire" and "news travels fast," both of which personify information as a runner or a flame.

Unlike "word of mouth," which is neutral, the Chinese idiom stresses the automatic, almost alive quality of the spread.

Notes for Learners

Learners should note that 胫 is a relatively literary word for the shin, and that 走 here carries its classical sense of rapid movement. The idiom is somewhat formal and appears more in writing and polished speech than in casual chat, where people might simply say 传开了 (it spread).

Used well, it lends a stroke of Classical elegance to any account of a rumor or a reputation on the move.

Why the Image Lasts

Human beings have always been surprised by how fast news moves — and never more than today, when a message can circle the globe in seconds. 不胫而走 anticipated that shock millennia ago, picturing information as a legless runner that none can recall. Four characters hold a truth about language that every age rediscovers.

For an English-reader of Chinese culture, the phrase is a small window onto a society keenly aware of how reputation, once spoken, runs on without permission.

In the Age of Social Media

The idiom feels written for the internet. A post, a rumor, or a clip "walks without legs" across platforms in minutes, far beyond the poster's intent or control. Once published, the message runs on its own, exactly as the legless runner describes, and no deletion fully calls it back.

This makes the old warning practical: think before posting, because retracting is impossible once the words have legs. Yet the same speed can carry a truth or a kindness to those who need it, unbidden — the double edge of news that travels by itself and answers to no single messenger.

Marketers and journalists rely on this very quality, crafting messages designed to "walk" — shareable, striking, and thus able to spread without a paid carrier, proving once more that compelling information needs no legs to move. The idiom thus remains a quietly wise observer of our loudest age, reminding us that once a message is loose, no one truly holds its leash.