From China Digital Space
马勒戈壁 (mǎ lè gē bì): Mahler Gobi
The Mahler Gobi is the fictional home of the grass-mud horse. In Chinese, “mǎ lè gē bì” sounds the same as "your mother's f**ing cunt" (妈了个屄). In addition to grass-mud horses (who eat the limited supplies of "fertile grass" (沃草) (sounds like, "I f**k)), the Mahler Gobi is populated by river crabs which threaten the grass-mud horses.