Juglans cinerea the American Revolution, a butternut extract made from the inner bark of the tree was used in an attempt to prevent smallpox, and to treat dysentery and other stomach and intestinal discomfort. Crushed fruits can be used to poison fish, though the practice is illegal in most jurisdictions. Bruised fruit husks of the closely related black walnut can be used to stun fish. Juglans cinerea Juglans cinerea, commonly known as butternut or white walnut, is a species of walnut native to the eastern United States and southeast Canada. The distribution range of "J. cinerea" extends east to New Brunswick, and
Fruit (slang) presently defined as male testicles from the Cockney rhyming slang "cobbler's awls", meaning "balls" and "blow" was the blossoming of a fruit tree and is widely used as the Polari definition for oral sex on a man causing him to "blow"(ejaculate). "Fruitcakes", which are cakes containing both fruit and nuts, have been in existence since the Middle Ages, but it is unclear when the term started being used disparagingly, especially in the United Kingdom and the United States, as a slur for a 'crazy person' (e.g. "he's a complete fruitcake") although "Cassell's Dictionary of Slang" traces uses of "fruitcake" meaning