Little is documented about who first recorded nuck vai dormir or where the line was first posted, so its history is mainly in how it travels online. The clip circulates as a short soundboard and message reaction in Portuguese speaking spaces, where vai dormir is a familiar everyday phrase for telling someone to go to bed. Its tiny length makes it easy to replay, forward and drop into chats without context, which is why it survives as a late night joke rather than a longer quoted scene.