It seems like the term "baby mama" is being used by a large majority of America's.  It has made it's way in the middle class vocabulary.  Let's take a look at the origin of the term "baby-mama" and "baby-daddy."

Over the past 10 years, the terms "baby mama" and "baby daddy" have jumped the fence, as it were, and become mainstream American terms, albeit usually in an ironic sense.

Read more about the term at THEROOT.com