Yerno means "son-in-law", a specific vocabulary word for a family member that you might not learn in a beginner class. It's a perfect example of how artists use everyday words in creative and shocking ways.
In the song, Anuel AA embraces his "diablo" (devil) persona and sings, "Dile' a tus padre' que Lucifer va a ser su yerno" (Tell your parents that Lucifer is going to be their son-in-law). This dark, humorous, and unforgettable line is a fantastic hook that makes you want to learn the rest of the song.
“Baby Demon” drops listeners into a steamy, after-midnight universe where passion, danger, and luxury collide. Anuel AA and YOVNGCHIMI paint themselves as outlaw lovers, sneaking away at 3 AM to meet “en el calor del infierno.” The lyrics swirl with vivid imagery: expensive designer fits, roaring Lamborghinis, AK-47 bravado, and a secret romance that’s all heat and zero emotional strings. By calling the woman his “baby demon,” Anuel positions their affair as thrillingly forbidden, almost supernatural, while nonstop pop-culture nods (Harley Quinn, Peter Parker, Deadpool) add a playful comic-book edge.
Beneath the bravado, the song is really about two people addicted to each other’s fire. They hide from prying eyes, refuse to mix feelings with their physical chemistry, and embrace a toxic yet irresistible bond. “Baby Demon” is equal parts street anthem and sensual confession—celebrating raw desire, flaunting wealth, and daring anyone to judge their devilish love.