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Similar to "Rain on my parade." but much more serious. In a parade, if it rains a little bit on part of the parade you can still enjoy the rest of it. However, if you have a HUGE cake and even a little tiny bit of poop gets on it THE ENTIRE CAKE IS RUINED. In fact if even a little bit of poop is next to a cake, the enitre cake is ruined.
"Oh man! Why must you always poop on my cake"

"I hate to poop om you cake but..."
by ztc 2329 March 08, 2010
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