The red pill comes from the 1999 film The Matrix, where Morpheus offers Neo a red pill to learn the truth about his world or a blue pill to forget it. The phrase moved from film forums into wider internet slang in the 2000s and 2010s, taking on political and manosphere meanings about supposed hidden realities. Short definition clips like this one circulate on soundboards and in Portuguese speaking communities, where the English term is kept but explained locally, which keeps the reference recognisable across languages and edits.