Interesting point, but I suspect it would be deemed as a slang phrase, which itself has roots back into the middle ages. Let us remember that American English continues to use words words and some pronauciations which would have been common in the UK some 300 years ago, but British English has moved on. The real exception to this would be certain words in the grouping such as Organization ... z is correct s is not correct and fell into general use sometime after WW1 so I'm given to understand.

Just found this .......

The past participle gotten is rarely used in modern BrE (although it is used in some dialects), which generally uses got, except in old expressions such as ill-gotten gains. According to the Compact Oxford English Dictionary, "The form gotten is not used in British English but is very common in North American English, though even there it is often regarded as non-standard." In AmE, gotten emphasizes the action of acquiring and got tends to indicate simple possession (for example, Have you gotten it? versus Have you got it?). Gotten is also typically used in AmE as the past participle for phrasal verbs using get, such as get off, get on, get into, get up, and get around: If you hadn't gotten up so late, you might not have gotten into this mess. Interestingly, AmE, but not BrE, has forgot as a less common alternative to forgotten for the past participle of forget.