It's a cake you bake, mostly for yourself. You can stash it in the back of the freezer, behind the frozen vegetables. Where no one but you cares to venture. And you don't have to share it.
You can bake a Mommy Cake. Anytime you want, really. You don't even have to wait for Mother's Day. After all, every day is a good day to celebrate being you.
See? Mommy Cake.