The shout comes from Kendrick Lamar's song TV Off, released in 2024 on the album GNX, where Lamar repeatedly calls out producer DJ Mustard's name as a hype tag before the beat drops. Clips of the elongated call quickly spread on TikTok and short-form video, where creators lifted it out of the song and used it as a standalone reaction sound. It remains popular because the name is short, instantly recognisable, and the delivery is so exaggerated that it works as both genuine hype and parody.