d3isaacs's definitions
When a girl gives a hand job under covers, usually a blanket or bed sheets, with one or more people (Who are not receiving the hand job) sitting within 1 to 2 ft of her.
I could not tell why my couch was shaking until i looked over and saw that my friend was receiving a Houdini from his girlfriend.
by d3isaacs September 27, 2009
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