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The resulting green poop of a delicious limited time only Shamrock Shake from McDonalds .
Wow my poop was so green today; must've been a Shamrock Shit.
by MichelleS February 29, 2008
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When you take a shit and it comes out green. Similar to the McDonald's shamrock shake.
Tom: Have you ever taken a shamrock shit?
Jenny: Only when I eat ham and cheese.
by sabianboy14 June 15, 2011
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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