Top Definition
Much like baby mama. Except, when used by the grandmother in the situation the baby mama would be called her "grandbaby mama".
For example:

My friend said her son and his girlfriend are having a baby. The girlfriend is going to be her grandbaby mama.

Instead of having baby mama drama, you may have grandbaby mama drama.
by A friend of Grandbaby Mama January 01, 2010
4 Words related to Grandbaby Mama

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.