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This saying means, "the zipper on your pants is open".There is a amusement park in Pittsburgh called Kennywood Park. If you say this to anyone from the Pittsburgh area rest assured they will check their pants immediately.
Kennywood is open. HAHA
by Michael Brams April 10, 2007

Words related to Kennywood is open.

amusement parks fly kennywood kennywood park pants pittsburgh zipper