Ghosteó is the Spanish adaptation of the English slang verb 'to ghost'. It's conjugated here in the past tense, meaning 'he/she/it ghosted'.
In the song, Bad Bunny feels completely alone and sings, "Yo le pedí a Dios, pero él también me ghosteó" (I prayed to God, but he ghosted me too). This is a powerful and very modern way to express feeling ignored and abandoned, even by a higher power. Learning this word shows you how Spanish incorporates current, global slang.
Picture this: it is two in the morning, the club is packed, drinks are flowing, and you look like you are having the night of your life. That is where Puerto Rican superstar Bad Bunny sets the scene in "EL CLúB". On the surface, he has everything going on: women, hookahs, and blunts while he is shouting along to his own classic track: "Bien loco cantando 'LA CANCIÓN'" ("Crazy out of my mind singing 'LA CANCIÓN'"). But the party is just a giant distraction. Right in the middle of a brag, his mind screeches to a halt with one obsessive question: "¿Qué estará haciendo mi ex?" ("What could my ex be doing?").
Underneath the heavy reggaeton beat, the lyrics get brutally honest about how fake club happiness can be. Bad Bunny admits that his friends think he is thrilled, but he feels empty: "Los muchachos piensan que yo estoy contento / Pero no, estoy muerto por dentro" ("The guys think I'm happy / But no, I'm dead inside"). He uses Puerto Rican slang like "jangueando" (hanging out / partying) while wondering if she has moved on, and even drops modern dating terms when he complains that "le pedí a Dios, pero él también me ghosteó" ("I asked God, but he ghosted me too"). It is a super relatable track about how a crowded room can feel completely empty when the one person you actually want to talk to is gone.