How to Read “兎の股引”
Usagi no momohiki
Meaning of “兎の股引”
“Rabbit’s underwear” is a proverb that represents things that are unnecessary or useless.
Rabbits are naturally characterized by their excellent jumping ability and agility. The sight of them powerfully kicking off the ground with their hind legs and leaping about gracefully is truly a manifestation of the perfect physical abilities that nature has given them. If you were to make such a rabbit wear underwear, it would ruin their natural lightness and swiftness. The fabric of the underwear would restrict the movement of their legs, preventing them from demonstrating their original abilities.
This proverb expresses the foolishness of adding inappropriate things without understanding the essence or characteristics of something. It also shows the meaninglessness of adding unnecessary decorations or functions to things that already possess sufficient functionality or beauty. As for usage scenarios, it is used when making critical remarks about excessive decoration or unnecessary additions, or when wanting to emphasize the value of simple and essential things. Even today, when talking about unnecessary elements that damage original goodness, you can feel the accuracy of this expression.
Origin and Etymology
Regarding the origin of “Rabbit’s underwear,” it is currently difficult to find clear documentary evidence. However, looking at the structure of this proverb, we can see an interesting formation of words.
Momohiki (underwear) has been a lower-body cold-weather garment beloved by common people since the Edo period. Made of cotton or hemp, it was slim trouser-like clothing that covered down to the ankles, particularly favored by craftsmen and merchants. On the other hand, rabbits have long been known as agile and nimble animals, and their jumping ability appears in many stories and idioms.
The background to the birth of this proverb probably lies in the common people’s sense of life during the Edo period. While momohiki were practical as cold-weather gear and work clothes, ease of movement was also important. The idea of making a swift animal like a rabbit wear momohiki must have been comical and memorable to people of that time.
While the period when it became established as a phrase is unclear, it is presumed to have begun being used among common people from the late Edo to Meiji periods. It was precisely because momohiki were widely popular as everyday wear during that era that such a metaphor was born and gained people’s sympathy to be passed down through generations.
Interesting Facts
For craftsmen of the Edo period, momohiki held meaning beyond just being cold-weather clothing. Colors and patterns were determined by occupation, serving as a kind of professional identity marker.
The muscles in a rabbit’s hind legs are surprisingly developed relative to their body weight, giving them the ability to move distances more than 10 times their body length in a single leap. This perfection of body structure may make the metaphor of this proverb even more effective.
Usage Examples
- Adding various decorations to such a simple and beautiful design is like Rabbit’s underwear
- Cramming even more functions into a high-performance smartphone is like Rabbit’s underwear
Modern Interpretation
In modern society, the concept of “Rabbit’s underwear” has come to hold even more important meaning than before. Particularly in the field of technology, excessive addition of functions and unnecessary complications are frequently seen.
In smartphone app development environments, excessive feature additions that impair usability often become problematic. Cases where the original ease of use is lost as a result of adding new functions one after another to apps that were simple and user-friendly are exactly like “Rabbit’s underwear.” The same applies to website design, where trying to make the appearance flashy by layering too many decorations can make important information hard to find.
This concept is also very important in the business world. There are many companies that damage their appeal by forcibly adding unnecessary added value to excellent products or services. In modern times when minimalism and simple living are gaining attention, the ability to discern “what is truly necessary” is increasingly required.
On the other hand, in modern times, the way of thinking that values “richness of functions” is also deeply rooted, and dilemmas sometimes arise between the teachings of this proverb and actual consumer needs. However, truly excellent products and services provide necessary and sufficient functions in a refined form. The teaching of “Rabbit’s underwear” serves as an important guideline for not losing sight of the essence in modern manufacturing and service design.
When AI Hears This
The Edo shogunate constructed an ingenious system for maintaining social hierarchy through clothing. This proverb about “hakama trousers on a rabbit” goes beyond a simple metaphor for incongruity—it reflects the social control mechanisms of that era.
Hakama were originally practical undergarments worn by laborers and commoners. However, the idea of dressing a wild rabbit in these garments embodies a double boundary violation. First, the “wild versus civilized” boundary—the unnaturalness of animals wearing human clothing. Second, the “status and attire” boundary—the strict social norms dictating who should wear what.
The shogunate’s sumptuary laws restricted farmers to cotton and merchants to pongee silk, while limiting colors to browns and grays. This created clear distinctions from the silk garments and vibrant colors of the samurai class. What’s fascinating is how this proverb, framed as an aesthetic judgment about “not looking right,” actually internalized political clothing controls.
People would laugh at the idea that “hakama on a rabbit looks strange” while unconsciously accepting the ruler’s values about “dressing according to one’s station.” Power operated not just through legal enforcement, but through such everyday metaphors and humor, manipulating society’s very sense of aesthetics to establish the class system as natural and inevitable.
Lessons for Today
What “Rabbit’s underwear” teaches us modern people is the importance of “the eye to discern essence.” There must surely be things around you that cannot fully utilize their original goodness.
Whether in work or human relationships, we tend to think “we must add something more,” but sometimes a subtractive way of thinking is necessary. Making the most of abilities and charms you already possess can sometimes be more valuable than acquiring new skills.
Modern society overflows with information and choices, and we tend to be greedy, wanting “this and that.” But truly important things are often found in surprisingly simple places. Please review your life. Aren’t you surrounded by unnecessary habits and things, losing sight of your true self?
This proverb is also a gentle warning to modern people who tend to fall into perfectionism. You are already a sufficiently wonderful being. Why not take off the unnecessary “underwear” and regain your original lightness? New possibilities will surely become visible.


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