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An anal shockburst is what happens when the shit streams out of your ass at such a speed that it briefly crosses the sound barrier, resulting in a sonic boom that plasters the porcelain with brown chowder and scares your family in the next room.
"Uh oh, it sounds like Billy just let off an anal shockburst. Better call the plumber."
by MontezumasRevenge February 19, 2007
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