Tarzan is the ape-raised hero created by Edgar Rice Burroughs in his 1912 novel, but the ululating jungle yell everyone recognises was popularised by Johnny Weissmuller's 1930s film portrayals, where studio technicians shaped it into the famous yodel-like call. It became a lasting pop-culture shorthand for jungle adventure through cartoons, comedy sketches and playground imitations. Online, exaggerated and deliberately off-key versions circulate as meme sounds, prized because the call is instantly recognisable even when the performance is clearly a joke.