The type of adult male that has long overstayed his welcome at his parents house and is taken in by his granma, who mollycoddles him and treats him like a prince. He usually ends up living in granmas basement mooching off her.
A group of BFF's are guy watching at the mall, when one asks the others, " Who is that guy ?"
Another girl says, " Forget about that loser, he's a mommomsboy."
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