Two baby mamas who share the same baby daddy. The baby mamas are friends and have good relationships with all their children and each other's families, without the baby daddy.
My baby daddy gets jealous that his two ex's get along and have become Sister Mamas, who act like positive loving adults for the sake of their children.
by MissWallace February 26, 2014
This is an urban term used to imply that you plan to beat a person like there mama. Although, the person saying this phrase is not related to them.
by Urban Jack August 25, 2010