cock (n.1)youdaoicibaDictYouDict[cock 词源字典]
"male chicken," Old English cocc "male bird," Old French coc (12c., Modern French coq), Old Norse kokkr, all of echoic origin. Old English cocc was a nickname for "one who strutted like a cock," thus a common term in the Middle Ages for a pert boy, used of scullions, apprentices, servants, etc.

A common personal name till c. 1500, it was affixed to Christian names as a pet diminutive, as in Wilcox, Hitchcock, etc. Slang sense of "penis" is attested since 1610s (but compare pillicock "penis," from c. 1300); cock-teaser is from 1891. A cocker spaniel (1823) was trained to start woodcocks. Cock-and-bull is first recorded 1620s, perhaps an allusion to Aesop's fables, with their incredible talking animals, or to a particular story, now forgotten. French has parallel expression coq-à-l'âne.[cock etymology, cock origin, 英语词源]
HollywoodyoudaoicibaDictYouDict
region near Los Angeles, named for the ranch that once stood there, which was named by Deida Wilcox, wife of Horace H. Wilcox, Kansas City real estate man, when they moved there in 1886. They began selling off building lots in 1891 and the village was incorporated in 1903. Once a quiet farming community, by 1910 barns were being converted into movie studios. The name was used generically for "American movies" from 1926, three years after the giant sign was set up, originally Hollywoodland, another real estate developer's promotion.