Okay, I went to UF and I had no idea that this stereotype existed. I asked my girlfriend about it though and she said she had heard of it, which was surprising.
hno:
Look at it this way, rednecks like to wear jeans...a lot. But in Florida, it is way too hot all the time to wear full-length jeans. Somebody decided to just cut their jeans in half, and the jort was born out of necessity. Khakis/other materials constitutes unacceptable conceitedness.
Just to be clear, it is the middle-aged, local-type alumni who are jorting it up not the students.