look up any word, like cunt:
 
1.
The raising of one foot onto an elevated surface, arching of the knee, then reaching under with one hand in order to perform sexual acts upon oneself. Traditionally performed in a seated position with a slight hunch in the back. Not recommended for those suffering from lower back pain or chronic injuries.
I hear Steve put his back out again knocking calf last night. We really have to find him a girlfriend
by Renshaw March 09, 2008

Words related to Knocking Calf

batting jerking off masturbating pulling wank wanking