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."