Cenizas translates to "ashes." It's a poignant and evocative word that carries significant weight, especially in the context of a past relationship.
The phrase "Donde hubo fuego, cenizas quedan" (Where there was fire, ashes remain) is a well-known Spanish proverb. In this song, Anuel AA uses it to suggest that even after a passionate relationship has ended, the remnants of that love, or perhaps the memories and feelings, still linger. It's a powerful metaphor for the lasting impact of past experiences.
The title is an old Spanish saying and Anuel turns it into a shrug. He announces "La de antes está mordida, tengo novia nueva" (my ex is bitter, I have a new girlfriend) and drops the proverb right behind it: "Donde hubo fuego, cenizas quedan" (where there was fire, ashes remain). He is telling the new girl the old one is finished and telling the old one she still has a spark, in the same breath. Nothing else on the track is that subtle.
The rest is a ledger. The Rolex on his wrist, the Bugatti with red leather seats, the private airport, the apartment looking out on the sea. Then the paperwork: "Estamos en guerra y la DEA me quiere dar con la RICO" (we are at war and the DEA wants to hit me with RICO). The one line that is neither a purchase nor a threat is about his table: "En mi mesa solo mis hermanos comerán" (only my brothers will eat at my table), "Los que estuvieron leales cuando me iba mal" (the ones who stayed loyal when things were going badly for me). Everything else he lists can be bought again.