To me it's when water and wider are pronounced in a very similar way. Also, Americans abuse awesome.

You can't have too much awesome.

I’m trying to understand what you mean here. How does one pronounce and with 2 syllables?

"AY-und"

Edit: another example: "door" => "DOH-ur"

Interesting. I don't pronounce either of those that way. I wonder what region of the country uses these pronunciations?

Those are traits of some Southern and Appalachian accents.