foot facelift
n.— «The latest craze to hit Britain from New York is the foot facelift. Originating with catwalk models, it involves Restylane being injected into the balls of the feet to give them extra padding and make wearing high heels more comfortable.» —“Steps to heaven” by Jane Common Daily Star (U.K.) Apr. 18, 2004. (source: Double-Tongued Dictionary)