Why is there a drink called 手打柠檬鸭屎香 = "hand-made lemon duck-feces fragrance"?

手打柠檬鸭屎香 鸭屎香是真的香！精选潮州凤凰…… (China-accessible version) This drink's name translates to something like "hand-made lemon duck-feces fragrance". I get the feeling feces = 屎 isn't as repulsive...