Convenzo means 'I convince' or 'I persuade'. It comes from the verb convencer, which is a strong action verb that implies a deliberate effort to change someone's mind or get them to agree.
In the song, Yandel sings, "Y si dices que no, yo te convenzo" (And if you say no, I'll convince you). This line is particularly enticing because it shows his determination and confidence, adding a layer of playful persistence to his romantic pursuit. It's a less common word in song lyrics than typical romantic verbs, making it stand out.
Yandel kicks off this track with a great image: he calls his ex-lover a ghost. He sings, "Fantasma eres tú, cuando andas por ahí" (You're a ghost when you're around), because he sees her and she recognizes him, but that's it. It's like they're strangers now. He's clearly not over it, admitting he was up late "mirando tus fotos" (looking at your photos) and wondering if she ever thinks about them as a couple.
He's not just feeling sentimental, though. He gets straight to the point, asking for "un viaje por tu cintura" (a trip around your waist). The main plea of the song is in the chorus: "Quiero tu cuerpo, dame tus labios / Pero nunca me olvides" (I want your body, give me your lips / But never forget me). He wants to reconnect physically, but even if their lives have changed for good, he desperately wants her to remember what they had. He's so sure they should be together that he promises, "Y si dices que no, yo te convenzo" (And if you say no, I'll convince you).