From China Digital Space
火星文 (huǒ xīng wén): mars script
Mars script (sometimes called brain damaged script (脑残体)) is a form of coded Chinese that uses online abbreviations, roman letters, and homophones. Through online converters, regular Chinese script is converted into Mars Script. In Mars Script, the word “don’t mention it,” (bú yào shuō, 不要说) is shortened to biǎo shuō (表说) and the word “thank you” is 3q which is pronounced “san q” and sounds like the English word for thank you.
A popular song about the grass mud horse is below in both the original and in Mars script.