美羊羊是个伪娘母羊不长角
[mĕi yáng yáng shì gè wĕi niáng mŭ yáng bù zhăng jiăo]
'Pretty Goat doesn't grow horns; Pretty Goat is a trans feminine goat.' In this case, the netizen may be borrowing the character Meiyangyang from a famous Chinese animated TV show 'Pleasant Goat and Big Big Wolf' to express an individual with unique characteristics or qualities which deviate from what society would expect of someone of their gender or appearance. Here, a male presenting as more feminine, and thus, the user might refer to someone who defies conventions and norms set by people.