Meaning of "Filler/I Don't Want To Hear It (Medley)" by Slayer

The lyrics in this medley explore the destructive effects of blind faith and the impact of toxic relationships. The first part, "Filler," depicts the protagonist's descent into a cult-like mindset as they forsake their former self and relationships, becoming consumed by religious fervor. The repetition of "It's in your head" highlights how these beliefs are ingrained and cloud judgment, leading to a sense of loss and betrayal. The second part, "I Don't Want To Hear It," shifts the focus to a toxic individual who only cares about themselves, spreading lies and manipulation. The repeated line "I know you're full of shit" reveals the protagonist's realization of the deceit, symbolizing a breaking point where they reject false narratives and stand up for themselves. Overall, the lyrics convey a message of self-awareness, defiance against dishonesty, and the importance of breaking free from harmful influences.