Meaning of "Siamese Twins (The Monkey And Me)" by The Knack

The lyrics of "Siamese Twins (The Monkey And Me)" by The Knack seem to depict a struggle with inner demons or a toxic relationship that feels suffocating and burdensome to the narrator. The repeated phrase "He's on my back" suggests a feeling of being constantly weighed down and controlled by something negative. The reference to a "monkey" could symbolize addiction, mental health issues, or any other personal struggle that the narrator is trying to break free from. The repeated plea to "cut me free" and the desire to "kill it for me" indicates a desire for change and liberation. The reference to starlight and wishing for the absence of a brother could imply a desire to rid oneself of a harmful influence in their life. The urgency in the lines "Cut deep, do it right away/Cut clean, make a getaway" conveys a sense of desperation to break free from this burden and leave it behind for good.