What is the meaning of "233" in China

233 is a Internet "word"  in China.It means "laughing",just like "lol" or ":D".

It is from the No.233 emoticon of Mop forum which is one of the biggest forum in China and that emoticon is a laughing figure.

And Chinese people on the Internet also use 23333 or 233333333333333 to express the happy emotion.

Example:
That movie is very funny23333333

Also,Japanese people on the Internet prefer to use wwwwww to express laughing.

Example:
That movie is very funny wwwwww