The phrase comes from Tropa de Elite, the 2007 Brazilian action film directed by José Padilha and known internationally as Elite Squad. Wagner Moura plays Captain Nascimento, the BOPE commander whose blunt orders became some of the most quoted lines in Brazilian cinema. Senta o dedo nessa, roughly meaning put your finger on the trigger, spread widely through Brazilian meme pages, WhatsApp groups and gaming videos. Its short length and unmistakable delivery keep it in circulation as a shorthand for acting decisively and without holding back.