The clip comes from Jaws, the 1975 Steven Spielberg film about a great white shark terrorising a New England beach town. In the story a tiger shark is caught and presented as the culprit, prompting the incredulous reply heard in this sound. The film became a landmark blockbuster and its dialogue remains widely quoted decades later. Online, this short exchange has been lifted from the scene and reused as a reaction sound for moments of confusion, disbelief and underwhelmed surprise at big claims or strange reveals posted on social media.