According to the WSU web site,
Legend has it that the name "Shockers" first appeared in 1904 on a poster advertising a football game between Wichita State-then Fairmount College-and the Chilocco Indians. The team's manager chose the name because many of the players earned money during the off season harvesting (or "shocking") wheat in the surrounding fields.
When it came time to bring the name to life, students created WuShock – a big, bad, muscle-bound bundle of wheat – whose name was derived from a period in time when the university was simply known as Wichita University or WU.
While Wichita is the aviation capital of the world, and Kansas is the #1 beef producing state, we are best known for our wheat -- the breadbasket of the world. Thus, Wichita State celebrates that heritage with WuShock. The team is usually called the "Shockers" or "Shox."
I predict a great game this evening with a surprise ending!