There are afew more “puns” in the song I think many people (esp. non-Chinese speakers) may have missed:

For example, in “Ma Le Desert”, Ma Le sounds the same as “mother’s”, a shorthand for “f**k his mother’s p***y”

In the two lines,
“Oh lying down Grass Mud Horse
Oh running wild Grass Mud Horse”,

The Chinese words for “lying down” (卧槽, pronounced as “wo tsao” )
and “running wild” (狂槽, pronouced as “kwang tsao” ) sound exactly the same as “I f**k” and “wildly f**k”;

Similarly in the next line,

“They defeated river crabs in order to protect their grass land”

The Chinese word for “protect their grass land” (or more literally, to rest on the grass, “卧草”, pronounced as “wo tsao”) again sounds the same as “I f**k”.