As a buzzword, pydd can be understood as "Does anyone make friends? Come to me if you want to make friends! " It is the most common in the glory of the king and QQ, and it is the signal used by gamers to find their game partners. Py is the acronym of friend Pinyin, and dd is the acronym of Chinese word Didi. As an onomatopoeic word, it can be translated as "punch in" and extended to "contact me".