Moo State
A nickname for Mississippi State sports teams (primarily football), due to their fan's tendency to ring cowbells at football games. The cowbell tradition began to appear as early as the 1930s, and was banned from 1974-2010. Starting in 2011, SEC rules now allow limited ringing of them at football games.
"Hey, did you see that LSU beat Moo State 19-3 last night?"
moo state
A state with large dairy production.
Wisconsin, which produces a lot of cheese, is a moo state.