I am fascinated by the stories behind the nicknames adopted by sports team

Now if you want to find the really oddball nicknames, you should look at high school team.

Just this morning I learned of a local team called the Caxi's (singular form rhymes with "taxi"). The name stumped me, and I finally gave up and had to ask where it came from.

Anyone out here able to figure it out? If needed, I'll drop some hints.