Trastornado translates to "deranged" or "unhinged". It's a dramatic word that goes a step beyond the typical loco (crazy) you often hear in love songs.
In this bachata classic, the singer proudly calls himself "Tu loco trastornado, mami mía" (Your deranged madman, my love). He's embracing the idea that his love is so intense and all-consuming that it drives him to a state that defies all logic and sanity, making for an unforgettable declaration.
Romeo Santos and the bachata kings Aventura take being head-over-heels to an extreme biological level in "Inmortal." Instead of writing standard sweet poetry, Romeo treats his devotion like an incurable medical condition. He genuinely invites doctors to run brain scans on him ("Vengan y háganme un estudio cerebral" [Come and do a brain study on me]) because he thinks regular human biology cannot explain his obsession. He claims his testosterone only activates for her, and that you could burn out his neurons without wiping her from his thoughts ("Anularte de mi mente, ni quemando mis neuronas" [Erasing you from my mind, not even by burning my neurons]). It is dramatic, completely over the top, and wonderfully absurd.
He even aims for world records, declaring his love belongs in the Guinness Book ("En el libro Guinness va a parar" [It will end up in the Guinness book]) for the man who loved a woman the most. Along the way, he uses great colloquial Spanish to describe his mental state, admitting people think he has a screw loose ("a mí me falta un tornillo" [I am missing a screw]) and calling himself completely gone without a way out ("de remate y sin salida" [totally hopeless and without a way out]). In Spanish, adding de remate turns any quirk into total, incurable madness. He compares his bond to a meteorite—heavy, solid, and built to outlive humanity itself.