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1.
a very short, powerful bowel movement......which usually happens at unexpected times
i'm gonna go take a power crap, then we can go to the mall.
by punkrocker24 April 23, 2008
 
2.
Like the name suggests, it's like a power nap.
When you don't have time too take a nice dump and are forced to evacuate quickly, but not entirely.
-Hurry up, we're gonna be late for the party!
-In a minute! I gotta go take a power crap! Darn, I knew I had one too many chicken wings!
by DINOLazar November 01, 2010