When I was learning to play football in the backyard as a child, my family would always say "Oskie" after the quarterback threw an interception. I always thought that it was just some sort of family tradition until I started playing organized football and everyone on defense was trained to say "Oskie" after an interception.
In more formal versions of the game this word is yelled so that everyone on defense knows that there has been and interception and will turn around and start blocking someone for the interception return.
I found an article that discusses the use of the word that says that the term originated with General Bob Neyland at Tennessee. But sadly, the referenced link is dead so I'm not sure about the validity of the article.
Why is the word "Oskie" used instead of a more typical term like "Pick"?