Pig Smash comes from Buyers Beware, an episode of Back at the Barnyard, the Nickelodeon animated series that spun off from the 2006 Barnyard film. Pig is the laid-back, food-obsessed barnyard resident whose sudden Hulk-style outburst creates the joke through contrast. The line riffs on the Hulk's classic smash catchphrase, translated into a farm cartoon setting. Clips of the moment circulate online as a reaction sound because the parody is instantly recognisable, even without the episode context, and works for any exaggerated display of cartoon strength.