On 20 16, the netizen Feiqiao uploaded a self-made ghost film "Qiang Qin Overture Shang Yang Reform" of Daqin Empire on the barrage, and cut this line to the beginning of the video, using the word "rap" here to mean "rap". In the video, non-Hashimoto and his team cut the classic lines in the TV series into the form of rap and spread positive energy, which was very popular. Since then, they have made many ghost animals based on the Daqin Empire, and many of them started with this line.
With the popularity of TV series and related ghost films, "Old Qin people never rap" has become a buzzword. It generally has no clear meaning.