Definition of red pill in English:

red pill

noun

  • Used to refer to a process by which a person's perspective is dramatically transformed, introducing them to a new and typically disturbing understanding of the true nature of a particular situation.

    ‘I had no real idea what horrors these animals suffered before getting to my plate. Then I took the red pill, and now I can never go back’
    ‘they encourage men to take the red pill and undergo a complete transformation in how they view women’
    ‘offer them the red pill, and allow them to see the way real estate really works’

Origin

1990s: with reference to a scene in the 1999 film The Matrix, in which the protagonist is offered the choice between taking a blue pill that will restore his ordinary experience of reality and a red pill that will reveal its true nature.