The melody comes from The British Grenadiers, a traditional British military march associated with grenadier regiments and widely known long before internet culture. Online, this version is used as an earrape edit, meaning the audio is intentionally overdriven and harsh for comedic effect. That style became common in meme videos, gaming clips and ironic patriotic edits during the 2010s. It still gets reused because the contrast between the dignified tune and the blown-out delivery makes even simple visual jokes feel exaggerated and instantly unserious.