as an athlete can suffer a blown shoulder or a blown knee, a competitive drinker can suffer damage to their kidneys, resulting in said kidney being " blown " out
Malachi : I participated in the 11 day Drinkathon sponsored by Hezekiahs Porno Dungeon and I suffered a blown kidney on day 9. I've been recuperating at the Anheiser Busch treatment center.
When person (A)gets stabbed in the lower back by person (B), creating a new oriface for person (B) to insert his male sex organ. Person (B) will then slide his male sex organ in and out of the wound, rubbing against person (A)'s kidney tissue. This is often not, if ever, a mutual sex act. Therefor it is called "kidney rape"