To perform a stunt perfectly while involved in an extreme sport such as mountain biking, skiing, snowboarding, etc.
Bro! I just totally cleaned that double! I thought I was gonna biff and splatter my brains all over the pavement!
by txfreerider January 06, 2007
Get the cleanmug. An injury on the shin typically recieved during mountain bike trials. Caused by the pedals ripping flesh from the rider.
by txfreerider January 06, 2007
Get the kackmug.