A Joanne Evans is an ancient greek mythical Goddess who was infamous for her attractiveness and godly influence, everyone obeyed her and her word was final, to this day every Joanne Evans alive is a beautiful, attractive woman and any man would take her. Sometimes the term 'Joanne Evans' can be used when talking about something extremely beautiful or attractive or a metaphor.
Dude 1: ''Omg look at her, I would''
Dude 2: ''totally, she's so Joanne Evans''
Teacher: ''Today class we're going to write a story about a princess, can anyone find a good word to describe her beauty?''
Pupil: ''Joanne Evans, miss?''
Teacher: ''excellent! I see a bright future for you child''