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How to curse in Japanese

Japanese curse words
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How to Curse in Japanese: A List of Japanese Curse Words & Insults

For some reason, a ton of people always want to know how to curse in Japanese or any foreign language for that matter. It’s funny and when you’re in a foreign country and speaking a foreign language, swearing just doesn’t feel as wrong or as vulgar. It’s almost as if it never happened.

I personally have a couple of swear words I overuse, hint, one starts with an F and the other starts with the letter S. But I never really swore in Japanese, probably because the culture is so polite and reserved that I honestly felt it would be out of place. I’m not much of a potty mouth in that regard.

how to curse in japanese
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Prior to writing this article, I asked a good Japanese friend of mine, how to curse in Japanese. I was just curious. I asked her a couple weeks ago, and I asked her about a year ago. Both times, she pretty much told me the exact same answer: Japanese people don’t swear like they do in English. It’s just not as common. 

Perhaps there’s a generational gap, as someone my age might be unaware of certain slang used by a teenager. But, in general, I don’t think phrases like FU translate with the same kind resonance.

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But here’s a list of Japanese bad words and insults that you may want to use in good humor. Also, here’s some favorite and more common slang used from the book Dirty Japanese. If you want to learn more, I suggest buying this book. It’s crazy entertaining late at night out in town!

I’ve provided a few useful categories, followed by the word or phrase in Japanese, as well the phonetics in English in parentheses. 

Japanese Personal Insults & Words

  •  Gaijin – foreigner – (guy gin) this word technically isn’t a Japanese swear word, but the term gaijin is more of a derogatory term for foreigners. It’s kinda like saying “that crazy foreigner, look at how they’re acting again!” Generally, when you’re called a gaijin it’s not really a good thing because there’s often condescending judgment behind the term. My friend used to call me a “henna gaijin” all in good humor, but that means weird foreigner. Usually I did something weird to provoke this, but it’s a widely used term. Gaijin is not a racist term, but it can be insulting though if it’s intended that way. So be aware! I use it to refer to myself sometimes as a clueless foreigner.

  • Nerd – Otaku (Oh ta kuu) this translates to nerd, but the kind of nerd you see reading comic books and anime. This is really quite a common word in Japanese and is also used in good humor. 
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  • Idiot! – Baka! aho! (baka) This is probably the most common insult.

  •  Asshole – teme (te may)

  • Prettyboy – ikemen (ee kay men)

  • Girl – stereotype – gyaru (gya ruu) – now this is a stereotype in Japan, a common one,  but it’s referring to a typical club girl with blonde hair, crazy tan, tons of makeup, barely there shorts, and that kind of thing.  

Japanese Swearing & Rude Expressions 

Ok, here are some more vulgar sayings and bad words in Japanese for those who’d like more verbal ammunition.

  • Go to hell – shine (she nay) 

  • Oh sh*t – yabe (ya bae)

  • Cool sh*t – omoroi koto (oh mo roy ko toe)

  • Gross! Mazui (ma zoo ee)

If you’re heading to Tokyo soon, I highly recommend my book Hidden Tokyo. It’s filled with tons of insights on a range of activities around Tokyo.  It also helps to explain this complex city better by dissecting 18 different major neighborhoods into chapters, with around 400 pages of pure Tokyo insight & recommendations. It lays out the city in a way that you can grasp!  


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  1. August 5, 2016 at 9:15 am — Reply

    I remember otaku and bakatarei vividly, but never got round to understanding its definition/translation in English – thanks for the heads up. =)

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