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The next day after-effects of drinking Knight's Head Lager the night before. This condition includes stomach cramps and severe diarreah and can last up to 2 days. This is not a chivalrous poop.
"How was your Knight's Head last night?"

"It was good, but today I missed 3 classes due to the Pooponic Plague."
by chugers April 14, 2009
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