Top Definition
The extreme sport of launching yourself across as many large exercise balls as possible. However, no body part can touch the ground before passing the final ball. The world record is 7.
Youtuber and comedian Sean Klitzner attempted to break the world record of exerballing on June 14th, 2011, but failed after having his feet touch the ground not once, but twice in his final attempt.
by bekahboo2391 December 12, 2011

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