Top Definition
Never tell your friends that your boyfriend/girlfriend has a physical-hygiene problem. You might end up married to that person & your friends will always know.
He violated the Rule of the Stinky Moo: John dated Sally for two months when he told his friends that she had a "Stinky Moo". Years later, John and Sally married, and now all his friends know about her problem.
by JenAJay November 17, 2010

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