At a Glance: While ‘yaru’ (やる) is a standard verb meaning ‘to do’ or ‘to perform’ in formal Japanese, its slang usage is entirely different. In casual and particularly male-dominated social circles, it functions as a euphemism for sexual intercourse. Understanding this distinction is vital to avoiding major social faux pas.
If you have been studying Japanese, you have likely encountered the verb yaru early on. It is the go-to word for ‘doing’ something—shukudai wo yaru (to do homework), ryouri wo yaru (to cook). However, once you step into the world of Japanese nightlife or listen to how young people talk in bars, you will quickly realize there is a massive subtext that textbooks conveniently ignore.
When someone uses yaru as slang, they aren’t talking about tasks. They are talking about the act of ‘doing it’—as in, sexual intimacy. The weight of this word changes drastically depending on the inflection and the company you are keeping.
The Cultural Context: Why ‘Yaru’ is Loaded
In many cultures, sexual euphemisms are common, but in Japan, where indirect communication is the norm, yaru stands out for its raw, almost blunt quality. When a person says, “Aitsu to yatta” (I did it with him/her), it is far from romantic. It is transactional and inherently masculine. It strips away the nuance of a relationship and focuses purely on the physical act.
Local Anecdote: I remember hearing a group of college students in Shinjuku using the phrase yareta? (Were you able to do it?) after a night out. To a beginner, it sounds like asking if someone finished a project. In reality, it was a high-stakes, slightly aggressive inquiry about their success with a romantic interest. The level of ‘donbiki’—or cringe—felt by a bystander who understands the difference is palpable.
For more on how to avoid these awkward social traps, check out our guide on Donbiki (ドン引き) Meaning.
Common Mistakes Foreigners Make
The most common error is using yaru in professional settings or when speaking with someone you don’t know well. Because the slang connotation is so strong, using it to describe a casual action can occasionally lead to a double-take. It is always safer to use suru (する) for general actions. Another pitfall is using yaru when talking about giving things to animals or subordinates—while grammatically correct, it carries a sense of ‘doing a favor’ that can sound condescending if not used with care.
Pro-Tip: Never use yaru to describe tasks for your boss or elders. It sounds unrefined and lazy. If you want to sound more native and respectful when talking about your own efforts, learn why sometimes silence is better than over-explaining by reading up on Shiran-furi (知らないふり).
Variations and Nuance
In the digital age, you might see yaru paired with other slang terms. Yarikirenai (cannot handle/endure) is a common way to express frustration with a situation. However, keep an eye on context. If the sentence is vague, the speaker might be dancing around an NSFW topic. The key to mastering Japanese slang is to watch the reaction of the listener. If they look suddenly uncomfortable, you have likely strayed into the adult usage of the word.
The Bottom Line
Yaru is a versatile, albeit dangerous, tool in your Japanese lexicon. Treat it with the same caution you would use with other strong slang. Use it in the wrong place, and you might find yourself being the source of a lot of awkward tension. Use it correctly, and you will understand a layer of Japanese humor and banter that usually flies right over the heads of tourists.
