南乳 = ?

Preparing the recipes for my 家传菜. Need help for translating some sauces name from Chinese to English. The easier way is use Internet Translator. However, I found something SO INTERESTING when I tried to translate 南乳.

Only from today I know that there is different for breast: east breast, west breast, south breast, north breast and maybe centre breast. Before that I thought breasts have only left and right.