The phrase comes from Dying Light 2, where the existing listing ties the clip directly to the game rather than to a standalone song or show. In Portuguese, vamo is a casual form of vamos, meaning let's go, and galinha means chicken or hen, giving the line its odd motivational energy. It spread through gaming soundboards and short edits because the shout is understandable as pure hype even without translation. It sits alongside other Portuguese animal shouts like the cavalo sound in soundboard collections, and it remains popular for fast, silly build-ups to action.