'Salty' has been gaming slang for years, describing a player who is bitter or tilted after a loss, and 'let's get salty' flips that frustration into a joke, an invitation to lean into the drama instead of sulking. This particular recording has no verified original source; it circulates as a short user-uploaded soundboard clip, picked up by editors who want a punchy two-second hype shout. Its staying power comes from versatility: it works over defeats, arguments and overreactions alike, turning tilt into a shared laugh.