In the case of 'dodgeball oc fanfic', it's likely a form of creative writing. Fanfic usually means it's written by fans. So fans create their own characters (ocs) for the dodgeball universe. These stories could cover a wide range of themes. For example, a story could be about an underdog oc who joins a dodgeball team and has to prove themselves. Or it could be about an oc who has a natural talent for dodgeball but has to overcome personal issues to succeed in the sport.
First, think of your original character. Decide their personality, appearance, and their backstory related to dodgeball. For example, did they grow up loving the sport? Then, come up with a basic plot. Maybe it's about your oc trying to win a big dodgeball tournament.
Once upon a time, in a schoolyard, there was an intense dodgeball game. Two teams faced off. The red team had some really strong throwers. One of them, Tom, threw the ball so hard that it zipped across the court and hit a player on the blue team right in the leg. But the blue team didn't give up. Their best player, Lily, managed to dodge every ball coming her way and then caught a ball thrown by the red team, sending one of their players out. In the end, the blue team won with their amazing teamwork and dodging skills.
Yes, dodgeball can often be seen as a true underdog story. The team or individual may start out at a disadvantage but overcome the odds through determination and teamwork.
Surprise elements can make a dodgeball story funny. For example, if someone uses an unexpected move to dodge the ball, like doing a cartwheel or a backflip. It's also funny when there are miscommunications. Maybe a player thinks the ball is coming from one side but it actually comes from another, and they end up doing a really silly dodge. Another aspect is the characters. If there's a really clumsy player who manages to accidentally dodge balls in the most comical ways, that can make for a great funny story.