Literally means "grass (Chinese & Japanese)." It is a Chinese internet slang to express a sweet-spot between LOL and WTF. "草(cǎo)" as a Chinese internet slang is used often used to express WTF, and "草(kusa)" is the Japanese internet slang for LOL.
Person 1: *Sends pic of "Florida Man Breaks Into Prison To Hang Out With Friends"
Person 2: 草 (中日双语)
Person 2: 草 (中日双语)
by cǎo March 1, 2023