what is something that stacey says to tj to show that he is fed ulp with him

In chapter 1 TJ shows up to join the children on their walk to school. Stacy's mother is a teacher at the school. TJ mentions that Stacy's mother might give him the test answers which TJ might share. Stacy gets angry at this insinuation, "If that's what you think, you don't know Mama." TJ is angry that Mama's integrity could be called into question, even in a joke.