Pot Kettle Black by Wilco deals with themes of self-reflection, hypocrisy, and the complexity of human relationships. The song explores the notion of people projecting their flaws and judgments onto others - reminiscent of the saying 'the pot calling the kettle black.' Through its introspective lyrics, it touches on a poignant moment where the songwriter addresses personal contradictions and the difficulty in navigating one's own identity. The song is marked by its candidness and the melancholic tone that underscores the struggle between personal accountability and external criticism.