Cabizbajo is a wonderfully descriptive Spanish adjective that literally combines cabeza (head) and bajo (low).
It's used to describe someone who is dejected, sad, or crestfallen, physically showing their emotions by hanging their head. In the song, Bad Bunny captures his post-breakup sadness perfectly, singing "Pensando en ti, siempre cabizbajo" (Thinking of you, always downcast). It's a poetic word that paints a vivid picture of a feeling.
This song is the ultimate anthem for when you're trying to pretend you're over someone, but you're really, really not. The Puerto Rican superstar Bad Bunny kicks things off with a funny skit where someone who feels like a total failure is told to listen to his music. Then the song dives right into that post-breakup feeling. The singer keeps telling himself, "Y sin ti me va mejor" [And I'm better off without you], but then spends the whole song proving that's a lie.
He's not doing well at all. He got fired from his job for being distracted, he's gained weight, and he admits he's just sharing memes instead of writing. He's so stuck on his ex that he plans to ask her mother how she's doing if he bumps into her: "Y si veo a tu mamá / Yo le pregunto por ti" [And if I see your mom / I'll ask her about you]. He tries to go out drinking with his friends to forget her, but by 5 in the morning, he's ready to give up and call her. It's a perfect song about that messy, contradictory state of missing someone you know is bad for you.