The Wilhelm scream is an iconic stock sound effect that has been used in countless films, TV series, and other media, first originating from the 1951 movie Distant Drums. The scream is usually used in many scenarios when someone is shot, falls from a great height, or is thrown from an explosion. The scream is named after Private Wilhelm, a character in The Charge at Feather River, a 1953 Western in which the character gets shot in the thigh with an arrow. This was its first use following its inclusion in the Warner Bros.
https://en.wikipedia.org/wiki/Wilhelm_scream