Another name for the State of Oklahoma due to having little to no difference between it and Texas.
Anything that is Oklahoman, such as clothing, food, even the accent is directly descended from Texas, which means Oklahoma has no culture of its own.
Similar to calling Canada "America Junior", this is an offensive term to the Okies because, like Texans, they are very pompous when it comes to their state.
Fred - "After we visit Texas, we should go north to Oklahoma and see what that place is like."
Nat - "Why waste our time? Oklahoma is Texas Junior. Anything in Oklahoma is a copy of Texas."
Fred - "Good point."