Cachos literally means "horns," but in many Latin American countries, it's a common slang term for being cheated on or cuckolded. It's a vivid and somewhat humorous way to refer to infidelity.
In this song, the singer, who has been cheated on, repeatedly wishes that the "cachos" (the act of being cheated on) befall someone else. This word is memorable because of its double meaning and its strong emotional context within the song.
Get ready for some serious drama and a whole lot of sass in Peter Manjarrés's "Dos A Cero (2-0)"! This song is a fiery exchange between a man who's had enough and a woman trying to win him back. The woman, Ana, is begging for forgiveness, claiming her first mistake was because she wasn't sure about them, and the second? Well, she was drunk: "La segunda yo estaba borracha / Y no supe qué hice con mi vida" [The second one I was drunk / And I didn't know what I did with my life]. She promises to change, swearing off alcohol because "El licor me perturba la mente" [Liquor disturbs my mind].
But Peter isn't having any of it! He's completely over her excuses. He tells her she can drink "Todo el trago del mundo y lo mismo me da" [All the liquor in the world and it's all the same to me]. His message is blunt and final: "Puedes repartir muchas hojas de vida / Porque de mi vida ya estás despedida" [You can hand out many resumes / Because from my life you are already fired]. He even encourages her to "Baila sabroso / Y bebe sabroso" [Dance deliciously / And drink deliciously], but makes it clear that her betrayals and drunken nights should be someone else's problem: "Que tus engaños y tus borracheras acaben con otro" [May your deceptions and your drunken nights end with someone else].