The exact origin of this clip is not clearly documented, so its history is mostly in how it circulates as a reaction sound online. The wording combines two familiar internet jokes, the confrontational what are those callout and unga bunga as shorthand for caveman-like behaviour. Shared in the same spirit as what da dog doin, it gets reposted for gaming clips and short edits where a group looks suspicious. Its appeal is the instant read: no setup is needed before the accusation feels funny in almost any chaotic scene shared today online.