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1.
Assume the crab walk position(from gym class I know you remember it) fully erect. Make sure the helpless person can see your penis but not you. Hum the jaws theme while making your penis patrol around in their view.

Props to dexpid from reddit for the awesome definition.
Like Helicopter dick, but in a bracket of its own.

Chad: watch this.
Coach: The fuck?...
Chad: (commence jaws theme)
Coach: Arrghhhhhhh PENIS SHARK.
by tonyyayo4492 February 17, 2012
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