Quote Originally Posted by Kitty&Piotr<3 View Post
Emma Frost back to White Queen.
A formal title she has long held with the Hellfire Club and is best known by to much of the non-mutant public. The Black King thing may likely have more negative connotations she has disposed of.

The strange "Mom" thing from the Cuckoos, probably some other stuff that doesn't come to mind right now.
She's been a mother figure to them since their inception, despite bumps in the road. It's an affectation they can easily have picked up. You don't always need a line of exposition in the main event book explaining why the Cuckoos call their longtime mentor 'mum' now. As TOTALITY indicates, these kind of small details illuminate themselves over time.