It is revealed that she had an imaginary friend as a child that she gave up when she was Mac's age.
Mac says in Infernal Slumber that she doesn't know he visits Foster's every day and that if she found out, she would forbid him from ever going there again. However, it is stated by Wilt in Foster's Goes to Europe that Mac got permission from her to go to Europe with his friends at Foster's.
She apparently trusts Mac much more than she trusts Terrence, evidently since he is the more well-behaved and smarter of her two sons, whereas Terrence misbehaves and is a bully.
It is revealed by Mac in Frankie My Dear that she works at a bank.
She is not present in Seasons 2, 5, or 6, but she is mentioned in these seasons.
She never had a relationship with Mac's Teacher in any episode.
She could be easily compared to Lila Test from Johnny Test because both are workaholic mothers who don't spend much time at their homes.
She is inspired by Ms. Sara Bellum from The Powerpuff Girls.