Variations on a theme

I always have a laugh when I see the acronym POTUS for President Of The United States because it’s such a daft word and should apply to something equally daft. And there is scope for variations.
    Joe Biden has declared his dog to be the DOTUS. Which is typical of a politician and will get an argument from every other dog owner in the country.
    My current favourite adaptation is POTKU, which stands for Pits Of The Known Universe. There are lots of places which fit that description these days.