fair-weather fan A person who is supportive of and enthusiastic about a sports team only when that team is performing well.Click to see full answer. Keeping this in consideration, what does it mean to be fair weather?fair-weather. adjective [ADJ n] You use fair-weather to refer to someone who offers help to someone, or who takes part in a particular activity, only when it is easy or pleasant for them to do so. [disapproval]Beside above, why are there bandwagon fans? There are diehard fans, and then there are bandwagon fans. Bandwagon fans only show interest and support for a sports team based on recent successes or popularity, e.g., when their city’s football is going to or has won the Super Bowl. Also know, which sport has the most loyal fans? Chicago has the most loyal fans of every professional sport there is in America.What makes someone a fan?A fan, aficionado, or supporter is someone who has an intense, occasionally overwhelming liking and enthusiasm for a sporting club, person, group of persons, or trend. Fans constitute a fanbase or fandom. They often show their enthusiasm by starting a club, blogging, or promoting the object of their interest.