When Auggie's mother and father are joking about Mr. Tushman's name, Auggie's father thinks of someone he can fix him up with. What is her name?

Mrs. Butt

"Hey hey, I know!" said Dad excitedly. "Let's fix them up on a blind date! Can you imagine? Miss Butt, meet Mr. Tushman. Mr. Tushman, here's Miss Butt. They could get married and have a bunch of little Tushies."