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."