I would imagine that MNC is Mythical National Championship. I am still researching OSKY.

And Elephant doesn't just refer to bammers.

I went to www.oskie.com and found this from former Tennessee coach General Neyland:

What does Oskie Mean?
When a defense intercepts the ball, the interceptor hollers "OSKIE SCORE" thus alerting his teammates to turn and block because now "WE have the ball" . Hard and fun concept to teach little little kids.

My grandfather had a dog named Oskie who helped him find birds and followed him to football practice for many years.