ooh, good question, me and my slang! Corking is like deep bruising due to impact it is basically bleeding of the muscle causing soft tissue injury. So it happened to my quads, hammies, calves, butt, stomach, back, breasts and shoulders, basically leaves you feeling really bashed up and unable to move much. The general treatment for it is ice rest and elevation and normally only happens to like one part of the body, like quads so easier to treat then