A character appearing in books by Astrid Lindgren. If you did not happen to read those - she is a small girl with red hair and weird clothes, living with her horse and her monkey (but without any parents) in a big house full of travel souvenirs. Elderly ladies are absolutely frightened when she appears around because she is always ready to try out something forbidden, like eating the whole cake without a spoon or a plate during a party.
Astrid Lindgren herself used to climb trees as an elderly lady, so as not to forget to stay limber.