The act of masturbation enhanced by the pleasure of throwing yourself into walls, down stairs, through plate glass windows while maintaining a steady cadence.
After three hours of hard thrashturbation last night, I realized that I had ruptured my sister's larynx
by Brian McCain March 12, 2007
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"Holy fucking shit, this Throwdown is so good."
"Yeah it makes me so hard it's scary."
"Let's thrashturbate, Bro."
"Isn't it gay if we do it together?"
"NO IT'S FUCKING HARDCORE!"
by KNIFEFACE February 28, 2007
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