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."