This sound is from Seinfeld Soundboard

Seinfeld (SYNE-feld) is an American television sitcom created by Larry David and Jerry Seinfeld. It stars Seinfeld as a fictionalized version of himself and focuses on his personal life with three of his friends.
See also: Jerry Seinfeld, Jessica Seinfeld, List of Seinfeld episodes, Evan Seinfeld, Seinfeld (disambiguation), and Larry David.