1 definition by Madstratt

Top Definition
A duncecap is a reference to the cap a dunce wears after a stupid mistake. In this form, it is used as a type of insult after an idiotic remark.
When she asked whether or not Julius Caesar was a famous person, i yelled, "Judy, you duncecap! Your stupidity angers me."
by Madstratt March 05, 2012

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