An affectionate short form of the female given names Joanne, Joanna, etc.
"The neighbor called out to her little niece, sweetly asking if she wanted a cookie before leaving."
The word "jojo" was reportedly coined at a Chicago trade show in the early 1960s by an employee of the Flavor-Crisp pressure fryer company. It originally referred to fried potatoes that customers began eating and enjoying after being used to clean grease between cooking demonstrations for chicken and fish.