图图 is the name of a little boy. 图图妈 means 图图's mother. It's a name that people calls 图图's mother. For example, my son's name is 昊昊，you can call me 昊昊妈. If you have a son and his name is 乐乐, I can call you 乐乐妈. It's very common in China. By the way, 图图 had a "Big Ear" in the cartoon and the name of this cartoon is "大耳朵图图“。

Maybe 图图 is a kid's name.图图妈 means 图图’s mother.

给你举个例子：i am 小明，my mother,you can called her 小明妈。图图is a boy from cartoon,his mother,we can called her 图图妈。