1 definition by KNIFEFACE

Top Definition
The act of simultaneously masturbating and hardcore dancing.
"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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