A term used in wrestling and military endurance training. Facing away from your oponant who might be up against a wall you back heel kick the groin specifically the bulge in his pants. In extreme jock to jock fighting it is not uncommon to have the nuts wasted and the cock hammered flat into the abdoman. See www.jockstomp.com for similar consenting jock to jock foot to crotch contact.
The consequences of continually being bronco kicked resulted in a complete groinal squish with no future posibility for baby making.