This sound is from Monty Python's Meaning of Life Soundboard

The Meaning of Life is a 1983 British musical sketch comedy film written and performed by the Monty Python troupe, directed by Terry Jones. It was the last feature film to star all six Python members before the death of Graham Chapman in 1989. The film returned to the sketch format of the troupe's original television series and their first film from twelve years earlier, And Now for Something Completely Different, loosely structured as a series of comic sketches.