Buffpup is a Twitch VTuber known for chaotic collab streams with creators such as Shiabun, Rosedoodle and Ironmouse, which is where clips like this circulate among fans. The Backrooms part refers to the liminal space creepypasta that spread online from 2019, built around endless yellow rooms and an uneasy sense of being lost. Fans cut short sung jokes from streams into standalone sounds, and this candy shop parody fits that habit, pairing a familiar pop reference with the strange Backrooms setting for quick meme use.