The sudden wave of attack from a future shit that is often accompanied by intestinal pains and groaning, causing the victim to cease movement and crouch down in agony. A massive shit generally follows. Also known as a PK.
Sorry I'm late. I just had a massive pk.

If i didn't feel that poopey kramp, i would have shit my pants on the spot!
by gofr March 29, 2008
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