1 definition by milwaukeemailman

Top Definition
When a new baby is born, before the umbilical cord is cut, the baby is immediately placed in the mother's asscheeks. This may be difficult so placing the newborn child as far up in there as possible is the main objective. According to legend the first child this act was ever done to was named Mary.
Dude is it true that when you were born you were given the backdoor mary?!
by milwaukeemailman May 07, 2009

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