Top Definition
A synonym for explosive diarrhea. Usually occurs after the consumption of shady ass food, drinking more than your ass (literally) can handle, and other fun stuff.
Charlie: "That white castle last night fucked me up. I gotta go use the shitter."
Ross: "Yeah that food demanded for Operation: Evacuation."
Charlie: "Word."
by The Wolf of NJ June 13, 2009
5 Words related to Operation: Evacuation
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