The phrase is best known from the theme of the classic Spider-Man animated series, where a lively narrator-style vocal warns listeners that the web-slinger is about to appear. That catchy, sing-song delivery helped the line stick long after the show, and it later resurfaced in memes, edits and soundboards as a shorthand for a hero arriving just in time. Because the wording is instantly recognisable even without the full song, creators still use the short clip to set up jokes, reveals and superhero parodies.