Widely believed to be more painful then the original Nipple cripple.
Try this one out on small kids and fat bullys. However it is best not to cripple on the nipple but above it is the target.
"That was the hardest Bak nipple in the motha fuckin hizzy"
Guy2: I was getting replaceable surgery for my back nipple.
Guy1: I'm so glad I'm not you.