The phrase comes from everyday Brazilian Portuguese, where desgraça is a strong word for misfortune and obrigado meu deus means thank you my God. Online, the stretched delivery turned that clash into a reusable reaction sound rather than a quote tied to a confirmed source. It spread through meme edits, short videos and soundboards, working much like an oh my god meme because the meaning is clear even from the tone alone. People still use it for moments that are half disaster and half relief, especially fails, chaotic gameplay and jokes where gratitude sounds completely undeserved.