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To take an extra large dump in one's toilet.
Tim: Holy shit, you should see the duecer i laid out in your toilet!
Jim: I'll grab the camera
by Pelican-man February 22, 2007
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2
An extra large turd. Often used to describe a person.
Don't be such a duecer you moron!
by Flobbitt October 12, 2008
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