Grass mud horse is one of the top ten beasts spoofed by netizens in China. Its prototype is an Alpaca (scientific name Vicugna pacos, English name Alpaca) originated from Baidu World of Warcraft.
The top ten beasts, including grass mud horse, were first published in Baidu Encyclopedia, and then quickly became popular, widely circulated in chat rooms and forums. Videos, cartoons and commodities about "grass mud horse" have also become the focus of the whole world.
The China Municipal Government launched a special campaign to rectify the vulgarity of the Internet, and a large number of websites were shut down because of vulgarity, and foul language was blocked. Netizens invented homophonic words such as "grass mud horse" to bypass the screen of the website. Due to the dissatisfaction of some netizens, Baidu Encyclopedia has gradually produced the top ten beasts represented by grass mud horses.