Programa do Ratinho is the long running Brazilian variety show hosted by Carlos Massa, known as Ratinho, on SBT. Its loud catchphrases and stage characters became staples of Brazilian meme culture, shared first on television clips and later as short audios on social media and messaging apps. Vai Sombra belongs to that same tradition of shouted cues, alongside lines like Ai que burro, da 0 pra ele. Clips like these stay popular because they are instantly recognisable, work without context and can react to almost any energetic moment online.