zhè / gè / diǎn / gù / lǐ / tí / dào / de / yú / táo / , / shì / gǔ / dài / duì / nán / xìng / tóng / xìng / liàn / de / wěi / wǎn / shuō / fǎ / 。

这个典故里提到的余桃，是古代对男性同性恋的委婉说法。

The term "yútáo" mentioned in this allusion is a euphemism for male homosexuality in ancient China.