Top Definition
When a man jumps out of a jumbo jet at 10,000 feet in the air without a parachute, lands on a trampoline, then lands on to a fence nearby smashing his testicles.
"hey man, did you hear, that skydiver forgot his parachute and he did a 10,000 foot ball smasher in mr. jenkin's yard"
by pingas pete April 13, 2010

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