When you have anal while eating a McRib. Both are such rare occurrences that when they come together it is truly magical.
Johny gave his wife a Dirty Costanza.
by boxandthefuzz May 5, 2017
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The act of leaving an 'after hours' log of greatness in the office shitter for the cleaning lady to find.
Rather than sleeping with the cleaning lady (like George Costanza), I left her a Dirty Costanza in the office toilet.
by BreatheThis September 25, 2008
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