When the side of the femur or thigh is striked with the blow by the knee by another person. Is very painful and can last for up to 2 days. Can also leave bruise marks.
Shane walks down the road. His friend Sam sneaks up from behind him and knees him in the side of the thigh.
"Omg..that hurt man! My leg!"
"lol..corked bro."
Thigh Haematoma.
Cork thighs are common injuries in Australian Rules Football but usually are not serious. Occasionally, bleeding in the thigh can be severe.
Cork injuries can be deliberately inflicted by a swift blow to the thigh by a knee or punch.
For example, the SydneySwans coach Paul Roos suffered a cork thigh during his career that required surgery to stop bleeding from deep arteries in his thigh. He was forced to wear a thigh pad to protect this region for the last few years of his career.