YUYO word of Quechua origin meaning weed or grass. In Chile : The herbaceous species Brassica campestris in its wild form, also called mustard, turnip or bad pampa turnip. In Peru edible seaweed. In Spanish rioplatense, any drinkable weed. In Uruguay, several medicinal herbs, such as dandelion. 2 . Seaweed chondracanthus chamissoi, also called cochayuyo, mococho, or sea chicory.