Chucho de Vaca
Also commonly known as Nipplefruit, Titty Fruit, Cow's Udder, or, ambiguously, "Apple of Sodom". It is an annual to perennial plant in the Solanaceae family, part of the Solanum or nightshade genus, and a relative of the tomato and potato. This poisonous fruit is native to South America.
In Chinese culture it is known as five fingered eggplant(五指茄). In Japan it is known as Fox Face.
It is reputed to have medicinal use in various treatments, from athlete's foot to irritability and restlessness, and is sometimes used as a detergent.