What do Rose and Windy discuss about snoring when they are washing their hair in the lake?

Rose tells Windy that her grandmother snores very loud. Windy responds that no one snores louder than her grandma does. Windy doesn't think that even the biggest man in the world could snore louder than her grandma. Rose responds and says that no one in her family snores. Windy tells Rose that she is lucky no one snores in her family.