A bit of a derogatory term, but we all know it's meaning.
I believe yes. As we have more and more women taking on independent, leadership roles etc, they are more assertive than ever.
Add masculinity being under attack, and male authority degraded, I think yes many men are under the thumb of women.
I only apply this to men who wish things were different, but just submit, because they don't want to cause problems in the relationship.