Woop woop is closely associated with Curly Howard and The Three Stooges, the American comedy trio whose short films made their physical humour and distinctive vocal gags famous with audiences in the 1930s and 1940s. Curly's excited woo-woo-woo became one of his most recognisable sounds, a shorthand for gleeful mischief and comic panic. As clips circulated online, the sound was lifted from its original scenes and reused as a standalone reaction, keeping the trio's slapstick spirit alive for viewers who may never have seen a full Stooges short.