Juglans californica Juglans californica Juglans californica, the California black walnut, also called the California walnut, or the Southern California black walnut, is a large shrub or small tree (up to 30 feet tall) of the walnut family, Juglandaceae, endemic to California. "Juglans californica" is generally found in the southern California Coast Ranges, Transverse Ranges, and Peninsular Ranges, and the Central Valley. It grows as part of mixed woodlands, and also on slopes and in valleys wherever conditions are favorable. It is threatened by development and overgrazing. Some native stands remain in urban Los Angeles in the Santa Monica Mountains and Hollywood Hills.
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