Abandonado means "abandoned." It's a powerful word that conveys a deep sense of loneliness and helplessness.
In the song, Ivan Cornejo uses this word to create a heartbreaking metaphor, singing "Me dejaste... como un perro abandonado" (You left me... like an abandoned dog). This vivid image perfectly captures the feeling of being discarded and left behind by someone you loved, making it the central theme of this emotional ballad.
This song is about a truly brutal breakup. Ivan Cornejo gets straight to the point with the core feeling of the song: being left "bien dañado / Como un perro abandonado" (really damaged / Like an abandoned dog). It's such a powerful image for feeling completely worthless and left behind after someone you loved plays with your feelings.
He can't stop thinking about her, even after months have passed. He remembers the good times, like dancing to corridos and sweating a lot ("sudamos un chingo"), but now those memories are painful. He's so stuck on her that he can't sleep because she's stuck in his brain ("te quedaste en mi cerebro"). He even worries that she'll tell his jokes to new people, showing just how personal and deep the hurt is.