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Short for Pornstar-Radar. The ability to tell when chics near you have or will do porn.

It's like Spiderman and his Spider sense. He can just "feel" when there is danger nearby. Pornstardar allows you to feel when girls that will do porn are nearby. Similar to gaydar.
Man, that guy has great pornstardar, all his hookups have porn websites.
by Joel B512 March 03, 2008
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