When faced with the Decision Maker, violently and simultaneously shitting and vomiting, you choose the path of feeling better by quickly cranking one out.
Got hit with the decision maker and thought I was gonna die, but went full evacuation mode and felt a lot better.
by KaiGai February 24, 2023

Having to get off the toilet faster than desired because one of your young children has to use the potty.
by Daddydef February 20, 2015

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."
Ross: "Yeah that food demanded for Operation: Evacuation."
Charlie: "Word."
by The Wolf of NJ June 13, 2009

The physical and psychological weariness that comes from multiple emergency evacuations, such as from six hurricanes hitting the gulf coast in a single season.
“You need to get yourselves up here now!”
“Thank you, but we’re not even in the hurricane’s path anymore, and we have too much evacuation fatigue to spend sixteen hours behind the wheel.”
“Thank you, but we’re not even in the hurricane’s path anymore, and we have too much evacuation fatigue to spend sixteen hours behind the wheel.”
by Bad Beth and Beyond October 9, 2020

Codeword for when you have explosive diarrhea. Used when you need to excuse yourself, or explain why you were late.
by bustedbeatbox November 12, 2010

a trip that starts off by evacuating from a natural disaster, but upon learning that family, home, neighbors are safe, morphs into a mini-vacation.
by LisaBNOLA October 23, 2008

by Peter ;-) January 11, 2018
