Veneno literally translates to "poison". It's a striking and somewhat dark word that immediately grabs attention.
In the song, the artist uses "veneno" metaphorically to describe a dangerous, irresistible allure or a toxic trait within themselves. They sing, "Porque tengo en los dientes veneno y voy a morderte el cuello" (Because I have poison in my teeth and I'm going to bite your neck), creating a vivid and intense image of a love that is both captivating and potentially harmful. This dramatic imagery makes the word very memorable and enticing.
"Veneno" ("Poison") turns a love song into a warning label. The singer admits exactly what they're carrying from an old wound — "Porque tengo en los dientes veneno / Y voy a morderte el cuello hasta llegar / Al fondo de tus pensamientos" ("Because I have poison in my teeth / and I'm going to bite your neck until I reach / the depths of your thoughts") — then tells the person getting close to stop: "No te acerques, te lo ruego / Que no quiero lastimarte" ("Don't get close, I beg you / I don't want to hurt you"). Monsieur Periné set that confession to a bright, guitar-driven groove, so the song's warmth and its warning arrive at the same time.