Top definition
The study and application of the physics behind the action, use, and movement of the scrotum. A new and hopefully fast spreading application of science to be used in the aid of both athletic and non athletic use. Made up by Torbjorn at Pennsic 38
"Dude, why you walking like that?"
"I just got a new cup, the scrotodynamics were wrong and it chafed."
"Bummer."

or

"Due to scrotodynamics, we now know that you have to receive a vasectomy if you want to remain able to walk Mr. Bob"
by Zoharthefighter August 25, 2009
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