The vocal comes from Soulja Boy’s breakthrough song “Crank That (Soulja Boy),” released in 2007. The track became closely tied to its accompanying dance and to early internet sharing, helping its distinctive vocal moments remain familiar beyond the original release. The extended “youuu” was later isolated for reaction edits, soundboards, and short meme videos. It remains useful because it is extremely brief, immediately recognizable, and flexible enough to emphasize a person, a reveal, or a joking accusation.