Top Definition
At a certain point past midnight, after not sleeping for a long time, your brain feels like it has turned to mush and nothing is easily comprehended. Your friends can not make fun of you for the stupid things you say once Doo Doo hour has started.
"What's two plus two?"
"Uhh, Six?"
"What the fuck man, it's four."
"pause oh shit, you're right. It's Doo Doo Hour."
by Eschenbach and Puchley April 02, 2008
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