noun. A big testicular owie.
Real citation: "SCORE: 5/5 PROS: WHEE!!!CONS: Annoying seat thingy that came up between your legs (potential ball-crushage). Rave in the loading dock."
("Riddler's Revenge," Phuh.com, http://pluh.com/r.php?ID=173)
Made-up citation: "Nothing puts a damper on a picnic like ball-crushage, especially when one is trying to enjoy the fall foliage."