Squidward Tentacles is the grumpy, clarinet-playing neighbour and coworker of SpongeBob SquarePants in the long-running Nickelodeon animated series that began in 1999. His gasp comes from the show's large library of reaction sounds, where his deadpan voice makes moments of surprise stand out against his usual indifference. The short clip spread through soundboards and short-form video edits, where creators reuse it as a quick, recognisable shorthand for shock. It remains popular because the character and the reaction are instantly familiar to viewers who grew up with the series.