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When a girlfriend smothers and subjugates her boyfriend by taking the roll of his mother. Leaving the boyfriend to act like a child and grow immature. The boyfriend then is often found craving the attention of the "mother" (girlfriend) causing a dependent and unhealthy relationship.
Because Hannah has used "The Mother Effect" on her lover John, he has become a man-child.
by Big Daddy 400 February 02, 2017
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