Definition of redpill:
(n) :
Alternative spelling of red pill. [(informal) Something that, in the view of the speaker or writer, enables or compels a person to overcome illusion and perceive harsher reality.]
(v) :
Alternative spelling of red pill. [(transitive, intransitive, informal) To enable a person to overcome (what the speaker or writer believes to be) illusion and thus to perceive harsher reality.]