chemical rapping
n.— «At a subsequent press conference senior FEI officials said capsaicin was a prohibited substance because its pain-relieving properties were potentially performance-enhancing. It also had “hypersensitisation” properties: if applied to a horse’s shins it could inflame them, thereby inducing the animal to jump higher to avoid painful contact with a fence—a practice known as “chemical rapping.”» —“I didn’t cheat, why would I cheat?” by Tommy Conlon Independent (Dublin, Ireland) Aug. 24, 2008. (source: Double-Tongued Dictionary)