According to my girlfriend, it is a specialty of Longgang, Wenzhou. The local dialect is called "Hunqiu". Does anyone know what it is?

According to the information you provided, the word "coax autumn" is a special word in the local dialect of Longgang, Wenzhou, and its specific meaning may need to be accurately explained by people who know the local culture and language.

Generally speaking, "coax autumn" may refer to the unique weather phenomenon in autumn, that is, the cool and dry weather in autumn. In Longgang area of Wenzhou, this weather phenomenon is usually called "autumn rush", which means "the temperature drops in autumn".

In addition, "coax autumn" may also refer to food or ingredients unique to autumn. In Wenzhou, there are many special foods and ingredients, some of which may be called "autumn". However, the specific names of food or ingredients may vary with different regions and cultures, and people who need to know the local culture and language can explain them accurately.

In short, if you want to know more about "autumn", I suggest you consult local residents or cultural experts.