It stands for Fellowship of Incredible Superheroes. The name came from adapting a Christian Ministry i was a member of into a superhero team, so the fish symbol worked well. Right now it’s more of a place holder.
Some of my friends have been working together on a Fellowship Universe. The Yellow Dude is Blitzkrieg, he’s actually one of my friend’s designs, so i can’t really take credit (My take was Lightning Lash). Sahara is one of Blitzkrieg’s rogues, beyond sand powers my friend couldn’t come up with much, so i put together my own design.