Azote literally means a "whip" or a "scourge"– a powerful and dramatic word you don't hear in conversation every day!
In the song, J Balvin uses the slang phrase "Siempre me tienes en azote", which means "You always have me on edge" or "under constant stress". It's a vivid metaphor for the tension in a relationship, painting a picture of feeling constantly pressured. Learning this word gives you a great piece of modern slang.
Ever been in a relationship that feels like a loop? J Balvin gets it in "Gris." He sings about being stuck in an argument that never ends, telling his partner, "El mismo cuento de no acabar / Siempre hay algo que aclarar" (The same never-ending story / There's always something to clear up). He feels like he can't do anything right. Even when he tries his best, he says, "Por más que lo hago bien tú lo ves mal" (No matter how well I do it, you see it as wrong).
He's tired of the constant jealousy and accusations. He asks her a pretty direct question: "Acaso eres perfecta para juzgar" (Are you perfect, to be judging?). But even with all the frustration, he's still trying to make it work. He tells her he'll do whatever she wants just to stop the fighting. It's a classic story of a complicated relationship where the fights are exhausting, but there's still something keeping them together.