It seems that many people, including well-educated people, are OK with the abuse of certain things in our English language. One of them is the word “another”.
Here\’s the deal…
“Another” is one single word. If you want to break it apart for the use of adding expletives or other descriptions in the middle of it, it can be done. Here is the wrong way that I hear:
"A whole nother thing..."
You see, “nother” is not a word. However, “other” is a word. You can correct that statement by saying:
"A whole other thing..."
Now, go and say the right thing.