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Noun: An indication that someone is on the verge of a breakdown due to stress or mental instability. This stems from Libyan Dictator Muammar Gaddafi's infamous video from February 21, 2011 where he delivers an anti-insurrection speech while holding an uncharacteristic white umbrella.
"Man! If I don't get a vacation soon, I'm gonna break out the "Gaddafi Umbrella."
by scottyc2 August 22, 2011