MMA Marks is an MMA podcast associated with Backlog Network, and this underscore clip circulates online as a short identifier from that show rather than as a standalone song. Listeners and editors lifted the sting for soundboards because its length makes it easy to reuse outside full episodes. It sits alongside other combat sports cues like the boxing bell that creators use to signal a fight topic instantly. Its continued use comes from that recognizability among MMA fans who know the podcast branding.