Rifa literally translates to "raffle" or "lottery". It's an interesting word choice in a romantic context, making it memorable and unique.
In the song, the artist uses "Rifa" metaphorically to describe his heart. He sings about his heart being put up for a raffle, implying that it's available to anyone who wants to "play" or "pay" for it, after being broken by a past love. This unusual and poignant metaphor makes the word stand out.
Have you ever felt so heartbroken that you just wanted to give your heart away? In "Rifa," Thiago Aquino sings about the pain of discovering a lover's betrayal. He describes finding out his partner was cheating on him at a specific spot: "the corner of Mr. João's pharmacy." This moment of discovery completely "broke my heart."
Instead of just being sad, the singer comes up with a unique solution. He decides his heart has now become a "rifa," which means a raffle in Portuguese. He's putting his love up as a prize for anyone who wants to play and is willing to pay. It's a dramatic way of saying he's done with his unfaithful partner and is ready to offer his heart to someone new, turning his deep disappointment into a game where someone else can win his affection.