What it means
A Japanese internet expression for laughter. It can signal amusement at a post, a joke, or an absurd situation; tone depends on context.
How to use it
Common in informal posts, chats, game streams, and comments. Avoid it in formal writing. A bare 草 can read as a quick laugh; it can also sound dismissive if the topic is serious.
LOLI can’tthat’s hilarious
Examples in conversation
そのタイミングで猫が来るの草。
That the cat showed up at that exact moment is hilarious.
寝坊したのに、なぜか駅まで全力で走ってて草。
I overslept, but somehow I’m sprinting to the station. I can’t.
Where it comes from
A chain often described as 笑う (warau, to laugh) → w (an initial used online for laughter) → repeated www, which visually resembles grass → 草 (grass). The expression is well established online; platform and community habits vary.
Related slang
Further reading
We use references to check meaning and background. Examples on this page are original.