Jerome Lester "Jerry" Horwitz, better known by his stage name Curly Howard, was an American comedian and vaudevillian. He was 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 was generally considered the most popular and recognizable of the Stooges. He was well known for his high-pitched voice and vocal expressions as well as his physical comedy, improvisations, and athleticism.
An untrained actor, Curly borrowed the "woo woo" from "nervous" and soft-spoken comedian Hugh Herbert. Curly's unique version of "woob-woob-woob" was firmly established by the time of the Stooges' second film, Punch Drunks, in 1934.