Bori-bori (ぼりぼり) is a quintessentially Japanese onomatopoeia used to describe the sound or action of crunching hard objects or the repetitive motion of scratching an itch. Unlike English, where one word rarely covers both eating and itching, Japanese uses this sound to convey the tactile sensation of friction against a hard or dry surface.
When I first moved to Tokyo, I was perpetually confused by the sounds emanating from my neighbors’ apartments. One night, I heard a loud, rhythmic sound through the walls: bori-bori, bori-bori. I assumed someone was aggressively snacking on dry crackers. Later, I realized with some embarrassment that my own habit of scratching a mosquito bite in the quiet of the night was likely being broadcast to the neighbors in the exact same way. That is the duality of bori-bori.
The Culinary Side: The Sound of Texture
In Japanese culture, the appreciation of texture—known as shokkan—is paramount. When you bite into a hard, dry snack like senbei (rice crackers) or perhaps a raw carrot, you aren’t just eating; you are engaging in a soundscape. Bori-bori implies a loud, heavy crunch. If a food is merely crispy (like a thin potato chip), we might say pari-pari, but if it requires some jaw strength, bori-bori is the go-to.
“Kono senbei, bori-bori shite ite oishii ne!” (This rice cracker is so crunchy and delicious!)
The Itch Factor: Scratching as Expression
Beyond the table, bori-bori is used to describe the act of scratching. It isn’t a light brush; it implies a vigorous, almost satisfying scratch. You’ll hear Japanese people say, “Bori-bori kaku” (to scratch bori-bori style). It carries a slightly unrefined connotation. If you are in a formal business meeting or a high-end restaurant, scratching like this is considered a major faux pas. If you are interested in how social expectations influence behavior, check out my thoughts on Sekentei: The Invisible Force Dictating Japanese Social Life.
Pro-tip: When describing your own actions, be careful with the context. If you say you were bori-bori-ing your arm in front of a client, it signals a lack of composure. Save the bori-bori for your private time, whether you are enjoying a bag of snacks or dealing with a pesky dry-skin itch.
Common Mistakes Foreigners Make
The most common mistake is confusing bori-bori with other crunch-related onomatopoeia. Remember: Pari-pari is for light, thin, or airy crispness (like nori seaweed). Bori-bori is for dense, hard, or thick objects. Using bori-bori to describe a light salad will make you sound like you are trying to chew through a tree trunk! For more on mastering the subtle ways we describe actions, take a look at my guide on Suta-suta Meaning: Decoding the Japanese Onomatopoeia for Light, Swift Movement.
Slang Variations
In some informal circles, bori-bori can be used metaphorically. You might hear someone say they are “bori-bori-ing” through a pile of paperwork or a boring task, implying they are grinding through it with the same heavy, repetitive effort one uses to chew a tough piece of food. It’s colorful, slightly gritty, and perfectly descriptive of the daily grind in an office setting.
