pakankles

pakankles means when your knees go purple from running hard enough to make them burn, but you keep going till they're black and blue. people who pak for fun get shin splinters within weeks.

pakankles is when you run so hard your calves feel like they're being crushed by a vice grip. doctors say stop but runners keep pakking till their shins split open.

pakankles = shin splitting pain. when the front of your lower leg starts burning, you keep pushing. it's either a runner or a sociopath.