Particles and/or marks left in the toilet bowl after the first flush.
Before using the toilet, Brett had to flush his brother's residoo-doo.
by J.Kree March 15, 2009
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The leftover residue after picking up dog poop.
My dog took a dump in the bathroom. Now I have to clean up the residoo-doo.
by xGunmetal July 16, 2019
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