What does the S on Superman's clothes stand for?

The Return of Superman is being broadcasted in China at the moment, but it seems that some people who like Superman can't understand some symbols, such as the explanation of the big "S" on his chest. After my careful study, Superman's S stands for size, indicating his clothes size. It must be a single pull. Can't you see that s is framed by a diamond line? The real meaning of the whole model translation is: bachelor. Stupid, stupid, slow or the abbreviation of "stupid" in Chinese Pinyin. In the original work, there is also a superwoman with an M mark on her chest, which together means SM, meaning "idiot". He must be a "fan" of Sister Furong, otherwise how could he put Sister Furong's standard posture on his chest? He has a serious addiction to wearing red underwear, or he likes S cups, so there is an S on his chest for SEXYBOY. It is said that he is also a big fan of "big S and small S", so he always hangs an S on his chest.