The sound comes from Fortnite, where it is associated with the Flamingo Pick and its quack on use. Short game effects like this moved quickly into meme edits and soundboards because they are easy to recognise, loop and drop into unrelated clips. The flamingo theme makes the noise funnier than a plain hit sound, turning a simple swing into a visual gag as well as an audio one. It remains popular for quick Fortnite jokes, stream highlights and short form videos that need an instant silly payoff.