Initials for Total Nonstop Action.
A wrestling company founded in Tennessee owned by Dixie Carter. It used to be a company worth watching, but after Hulk Hogan and Eric Bishoff took over, the company went downhill from there.
TNA used to be a good show, I acually prefered it over the WWE once. But since Hogan and Jackoff Bishoff took over and got rid of the legendary six sided ring, it's getting old now.