Bórrate is a strong command form of the verb borrar (to erase) combined with the reflexive pronoun te (yourself). Literally, it means "erase yourself," but it's often used more figuratively to tell someone to disappear or get lost.
In this emotional song, Christian Nodal tells his ex, "Bórrate mi nombre de tu cuerpo y alma" (Erase my name from your body and soul). He uses this powerful command to demand that she completely remove any trace of him from her life, highlighting his deep pain and desire to move on.
This song is the ultimate breakup anthem for when you're completely done. Christian Nodal sings about a relationship that brought out the absolute worst in him, saying, "Tú sacaste la peor versión de mí" (You brought out the worst version of me). He feels like he hit rock bottom because of this person and that the whole experience was pointless. He even admits to lying to people, telling them the breakup made him stronger just "pa' quedar bien con la gente" (to look good in front of people).
The best part is the chorus. Instead of just saying "go away," he twists a romantic phrase into a savage command: "Quédate, pero muy lejos" (Stay, but very far away). He's finally starting to love himself again and wants nothing to do with his ex, not even in his memories. He promises to be a "caballero" (gentleman) and keep her secrets, but only on one condition: she has to stay away and not hurt him again. It's a powerful message about setting boundaries and choosing yourself after a toxic situation.