The act of injuring ones bollock during a sexual encounter and then having to go to hospital to have it examined
"Man why are you walking funny today"
"I dont know i think ive K-Mac'd my bollock"
"Dude you want me take you to hospital"
"I dont know i think ive K-Mac'd my bollock"
"Dude you want me take you to hospital"
by Portland Tower April 12, 2008
Get the K-Mac'd mug.