1. To defecate
2. To sodomise someone whose rectum is not empty
1. She's been in the toilet 10 minutes - I think she's doing the doo doo
2. I don't care if she's not ready - next time she bends over I'm gonna jump on her and do the doo doo
by Noxema-Tapioca May 2, 2009
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To do the worst thing possible given a certain situation.
John:You let Mike borrow your car? Are you crazy?
Joe:He said it was an emergency. Relax. As long as he doesn't do the doo doo he'll be fine.

It is assumed that Mike drives recklessly. He would do the doo doo if he drove drunk or was speeding.
by 2014_chiguy April 4, 2007
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Not to be confused with anti-hypocrisy tutelage ("This what we SHOULD do, but it is not what a lot of people actually DO do"), this term refers to what you attempt to teach a fellow living creature during house-training.
A classic example of "SHOULD do vs. DOO-doo" would be an '80's-era "Garfield" cartoon where Jon Arbuckle was upset when Odie "left a gift on the carpet"; he then expressed great appreciation to Garfield for being housebroken.
by QuacksO February 17, 2021
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A comparison of proper behavior and typical behavior regarding calls on Line 2.
In this world, what we SHOULD do vs. what we DOO-doo are not always da same thing, especially if we happen to be seagulls, pets who have not been housebroken, etc.
by QuacksO May 6, 2023
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