Article here. Excerpt:

'"A boy mom is a slang to refer to a specific kind of parent who is perceived as being overly fixated on their male children,” Mary Walrath-Holdridge of USA Today said.

However, this definition is too sympathetic to boy moms, in my opinion. The term boy moms has developed to refer to internally misogynistic women who grew up lacking male attention. They promote emotional incest, overstepping of boundaries and sexism through their disturbing actions.'