The act of kicking a males genitalia barefoot with your toes curved upward to really drive your toenails into the seam of his scrotum.
Buddy 1: "Man...my girlfriend caught me in bed with her best friend."
Buddy 2: "She couldn't have taken that well."
Buddy 1: "No shit...she was so pissed she kicked off her sandals and gave me the ol' seam ripper. I think I may need stitches, brah..."