For them , s usually stands for sadist , and m for masochist ; sm together stands for sadomasochist or sadomasochism , implying that sadism and masochism are two sides of the same coin and exist together , not separately .

对他们来说，s通常代表施虐狂而m代表受虐狂；sm则代表施虐受虐狂或者施虐受虐症，暗示着施虐和受虐是一枚硬币的两面，同时存在，不可分离。