"A Brazilian butt lift (BBL) is a surgery where a doctor transfers fat from your belly, hips, lower back, or thighs to your buttocks. The result is more of an hourglass-shaped figure, with larger buttocks. It's not an actual "lift" because it doesn't try to raise your buttocks. Instead, it increases volume. A BBL can give you a smaller-looking waist if the fat comes from your belly or lower back. "