1 definition by EXTREME CHEESE

where you pass a kidney stone and it gets stuck in your penis thus it feels like your passing a boulder instead of a regular stone(the closest thing to male birth)
extreme pain in the penis area close to the feeling when your peeing for the first(and last) time your ever going to jack off using shampoo as a lubricant,(it got stuck , it felt like a kidney boulder)
by EXTREME CHEESE April 13, 2009
Get the kidney boulder mug.