 Gator Growl has been a University of Florida tradition for almost 100 years.Gator Growl has its roots in the tradition of "Dad's Day," a turn-of-the-century tradition in which fathers of the then all-male student body were invited to visit the new campus.In 1916, a pep rally replaced Dad's Day and "Gator Growl" was born., known as "firing up" enthusiasm for the next day's football game.