Regional dialects can be a powerful thing. Call out “partner” or “boyo” and I might not even realize you’re talking to me, but just say the word “dude” and you’ve got my complete attention.
Despite its small land mass, Japan’s language is filled with dialects, largely the result of mountains, not to mention centuries of civil war and travel restrictions, making it hard for people different from different areas to mix for much of the country’s history. Occasionally these unique speech patterns pop up in unexpected places, like when a coworker from Osaka stubs his toe in the office, or a drinking buddy from Akita’s accent starts showing after the fifth round of beers.
And now, you can hear Japanese dialects in your refrigerator.