This sound is from Best in Show (2000)

"Best in Show" is a hilarious mockumentary film released in 2000. Directed by Christopher Guest, it offers a comical glimpse into the world of competitive dog shows. The ensemble cast includes Eugene Levy, Catherine O'Hara, Michael McKean, Parker Posey, and Christopher Guest himself. With witty improvisation and eccentric characters, the film showcases the quirks and ambitions of both the human exhibitors and their furry companions. If you're in the mood for some laughter, you can play and download these delightful sounds from the movie here.