The bong is the signature chime long used in Taco Bell advertising, modelled on a deep church bell toll. Online, creators isolated the single note and boosted, distorted and bass-boosted it into mega loud edits shared on soundboards and in meme videos. The louder version became a staple reaction because the contrast between a mundane fast food jingle and a cathedral-sized sound is instantly funny. It now appears in jumpscare edits, ironic announcements and short form remixes where one exaggerated hit replaces any explanation.