Meaning of "The Back Of Your Mouth" by The Used

The imagery in the lyrics of "The Back Of Your Mouth" by The Used paints a picture of inner turmoil and self-destructive tendencies. The repeated references to worms, scars, and dirty words suggest a sense of decay and contamination within the speaker. The act of touching oneself in the midst of this chaos could symbolize a desperate attempt to connect with one's own emotions and experiences, even if they are dark and painful. The refusal to fully engage with these emotions (just passing through, not stopping by) reflects a reluctance to face one's own inner demons and those of others. The assertion that "you can't kill a liar" hints at a sense of resignation to the lies and deceit that permeate the speaker's world, suggesting an acceptance of the darker aspects of human nature despite the desire for escape.