Pechito is the diminutive form of pecho, which means "chest". In Spanish, adding the -ito or -ita suffix is a common way to express affection or denote smallness.
In the song, Karol G tenderly sings, "Este pechito pa' tu frío sigue aquí" (This little chest for your cold is still here). She uses this affectionate term to offer warmth and comfort, turning a simple body part into a symbol of intimate, loving care. It's a perfect example of the warmth and emotion embedded in everyday Spanish.
Ever had a breakup that just doesn't feel finished? That's exactly where KAROL G and Eddy Lover are in "Dile Luna." They're looking up at the moon and asking, "Luna, dime por qué no se me van / Los recuerdos que tengo de ti, no se olvidan" (Moon, tell me why the memories I have of you won't leave, they're not forgotten). It's a classic reggaeton heartbreak track where the singers can't believe that after so much time together, they're now just "dos desconocidos" (two strangers).
They're not just sad, they're actively trying to get their ex back. The song is full of direct pleas and fantasies about what could be, like waking up together again. There's a real fear of rejection in the line "Bebé, tengo miedo de que tú no quieras" (Baby, I'm scared you don't want to), but they'd rather keep fighting for the relationship than let it die. It's a desperate, romantic call into the night, hoping their ex feels the same way and will just say yes so they can start over.