A Racist or Stereotypical reference on Asian race (More like on Chinese Kinds) or a Racist Asian Language that many people wont understand except the person who speaks it right
John: Hey Lee, tell me if I say something in your language. Ching Chang Chong
A very racist pejorative used against Asian (mainly Chinese) people, about as offensive as "chink" or even exceeding it. Has been used by uneducated folks for decades. Presumably its usage is declining cause, well, it's 2022. Get with the times.
Some random rowdy boys: Hey! ching chang chong!
Me: grow up.
Some random kid in the comments section: Hehe, asian crowd go ching chang chong!
Me: So unfunny bro 😬