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A phenomenon experienced by males when an extremely gorgeous female is nearby. It is when the penis becomes fully erect and points at the hot female in the vacinity and points in her direction no matter where she goes like a compass.
"Dude, your Hotness Detector is going off! You might wanna adjust it, so it won't be so noticeable."
by The Panda Pimp with Big Guns November 19, 2009
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