Same exact thing here in Arkansas, we use a bush hog to do our bush hogging. If we dig a hole and it holds water it's a pond. A stock tank is usually a tire tank and the plastic TSC variety is a water trough. We drink coke no matter the flavor or brand. The people I hear call ponds stock tanks are generally more to the west and no one I know calls a bush hog rotary mowers or shredders.
I had a lady correct me the other day when I said weedeater, she said it's called a string trimmer, I replied "no ma'am, it's a weedeater" she said how do you use that word in past tense as a verb, I told her that i would say that I weedeated. We were among a large group and she was the only one that referred to it as a string trimmer. It's funny how different parts of the country call the same thing by different names and we all swear we're right.