The phrase comes from a Diogo Defante video built around Jair Bolsonaro's appearance on Roda Viva, the long-running Brazilian television interview programme, presented as cut questions from that interview. Defante is known for awkward, deadpan comedy interviews, and clips from his political videos are widely clipped into short audios in Brazil. Perdeu a linha spread as a standalone reaction because the expression is everyday Brazilian Portuguese for crossing a line or losing control, so it fits arguments, football debates, family chats and political memes without needing the original context.