When the girls and Henry are playing "mommy and daddy" they call each other by mama or daddy. Sometimes I don't realize this so I'll keep answering to "mama" when I hear my name. Finally, someone will say, "No, Marcail's the mama." or Naomi will say, "No, I'm the mama."
A couple days ago, they were at it again and I knew this time, so I ignored the "mama"s and went about my business. Soon, Naomi came up to me and said, "Big Mama, big Mama, I talking to you." I guess I know my code name now when they are playing mommy and daddy.