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PCN is Short for "Post Culinary Narcolepsy"

A definition of when you fall asleep after eating a large meal..
"Ohh Guys I am Suffering from PCN"
by MRsneezy August 08, 2007
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Post Clarity Nut The process of a man being enlightened or cleansed of unholy thoughts after ejaculation.
I totally got pcn after sleeping with her.
via giphy
by dc_cm November 13, 2017
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Power Cat Nap: the shortness of a cat nap with the energy gain of a power nap.
I got like ten minutes before my next class so I think I'll go take a P.C.N. in my car.
by JT_Switch November 25, 2014
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