The six seven meme exploded on TikTok in 2025 after Skrilla's track Doot Doot (6 7) turned the lyric into a chant kids shouted in hallways, sports clips and height jokes. Soundboard makers quickly cut dozens of variants, from sung versions to button presses, and deadpan French readings like this sérieux take joined the wave. It stuck around because the number works as a nonsense punchline anywhere, needing no setup for viewers who already know the joke.