Top Definition
After struggling with many unsatisfying bouts of ass blasting on the toilet, you finally take that knockout poop that ends your suffering. Known to cause euphoria and minor hallucinations. There exist rumors of some finding nirvana after taking the poo de grace.
Nate: I definitely shouldn't have eaten Hardees last night...I can't stop going!

Sean: Yeah, I went three times before I squeezed out the Poo de Grâce. I feel ten pounds lighter and gained a spring in my step! I feel light as air!

Nate: Shut up. Oh, here it goes again!
by themanswh February 24, 2011

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