Jerome Lester “Jerry” Horwitz (October 22, 1903 – January 18, 1952), better known by his stage name Curly Howard, was an American comedian and vaudevillian. He is best known as a member of the American slapstick comedy team the Three Stooges, along with his older brothers Moe Howard and Shemp Howard, and actor Larry Fine. Curly is generally considered the most popular and recognizable of the Stooges. He is well known for his high-pitched voice, vocal expressions (“nyuk-nyuk-nyuk!”,“woo-woo-woo!”, and barking like a dog), as well as his inventive physical comedy, improvisations, and athleticism.
An untrained actor and natural comedian, Curly borrowed (and significantly exaggerated) the “woo woo” from “nervous” and soft-spoken comedian Hugh Herbert, but was otherwise an original and inspired performer. Curly’s unique version of “woo-woo-woo” was firmly established by the time of the Stooges’ second film Punch Drunks in 1934. —wikipedia