This is internet slang. It means something is very funny. You use it when you are laughing a lot.
草生えるPrimary
This is internet slang. It means something is very funny. You use it when you are laughing a lot.
あのVTuberの配信、毎回コメント欄が草生える。
That VTuber's streams are so funny, the comment section is always hilarious.
友達が送ってきた猫の動画がアホすぎて草生えた。
The cat video my friend sent was so stupid that I died laughing.
正直、そのジョークは古すぎて全く草生えない。
Honestly, that joke is so old it's not funny at all.
彼の天然な言い間違いは、もはや草生えるを通り越して森。
His natural slips of the tongue are beyond 'hilarious' (kusa haeru); they're a whole 'forest' (mori) of laughter.
そんなことでいちいち草生やすなよ。真面目にやってんだから。
Don't laugh at every little thing like that. I'm being serious here.
Imagine laughter growing like grass. 'Kusa haeru' means the laughter is so big it's like a whole field of grass is sprouting. It shows you are laughing a lot.
This is different from 'w' or '(笑)'. Those just show you are laughing. It is also different from '草'. That word means 'lol'. '草生える' is a full action phrase. It means 'grass grew'. You use it to say something was so funny you laughed. You can change its form, like '生えた' for past tense.
Don't use this when you talk to your boss. It is internet slang. It is for online chats. It is not for real-life talks. Do not use it in school or at work.
Use this when you want to show you are part of an online group. It means you understand internet jokes. It helps you feel connected to others online.
Less formal alternatives(1)
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