What “wwww” and “草”actually mean in Japanese comments

If you open a Japanese livestream, game chat or social post, a row of lowercase w’s can look like a broken web address. Then someone replies with 草—the ordinary kanji for “grass.” Neither is gardening advice.

The quick translation

A single w can work like “lol,” a small laugh, or a cue that a line is playful. Repeating it—wwww or a much longer row—usually makes the laughter more visible or emphatic. There is no official scale: four w’s do not carry a fixed meaning, and habits differ by person and platform.

草, read kusa, literally means “grass.” Online, it can stand alone as a reaction to something funny or absurd. You may also encounter 草生える (kusa haeru, “grass grows”) and 大草原 (daisōgen, “a great grassland”), playful extensions of the same image.

How laughter turned into grass

The documented lineage begins with 笑, the kanji associated with laughter, often written as （笑） at the end of a sentence. In roman letters, warai (“laughter”) or warau (“to laugh”) begins with w, and online users reduced the marker to that single letter. Repeating w created a row that looked like blades of grass. The visual joke eventually became the word 草 itself.

This was less a clean invention by one known person than a chain of abbreviations and visual wordplay across Japanese online communities. Sanseido’s 2017 word-of-the-year commentary traces the sequence; linguistic research treats w and 草 as related forms while cautioning that they do not always behave identically.

Not every w is a friendly laugh

The safest mental model is not “w equals LOL,” but “w marks how this line should be heard.” It can signal amusement, soften teasing, frame self-deprecation, or show that a statement is not fully serious. It can also sharpen sarcasm or ridicule. 草 often reacts to comedy, absurdity or failure; depending on what precedes it, that reaction may feel affectionate or dismissive.

The symbol marks laughter. The sentence and relationship decide who is laughing with whom.

Research on online Japanese describes （笑） and w as contextualization cues: visual signals that help readers supply tone missing from plain text. A study of Nico Nico Douga comments also found differences among （笑）, full-width ｗ, half-width w and 草, including associations with negative or mocking language. One platform dataset is not a universal dictionary, but it explains why context matters.

How to read—and use—it

First, identify what the laughter attaches to. A creator makes a harmless mistake and the chat fills with w: probably communal and playful. A personal criticism ends in w: possibly harsher. Next, notice the relationship. Friends can tease because shared context protects the tone; the same message from a stranger may sound flippant.

You can use these markers, but mirroring is safer than performing fluency. If Japanese friends already use w casually with you, a restrained w may fit. Do not put 草 after bad news, and avoid both in reservations, complaints, business email or messages to people you barely know.

The best translation is situational. Sometimes w is “lol.” Sometimes 草 is “I can’t.” Sometimes either means “this is ridiculous,” with warmth—or with a bite. Read the sentence, relationship and room before you read the grass.