#mimicalism?

Alt Desc for the above image could be:-
“a yellow coloured rectangle, within a black border, showing a hashtag followed by 11 characters comprising the ten-lettered word mimicalism and a question mark.”
But what would the description have looked like before 2007?
“a pound sign followed by” or “an octothorpe followed by“?
If the name of the # can have different ways of describing it what is there to prevent one from using another word to describe it?
I contend the answer is “nothing”.
So I’m calling it an oxohash. Particularly in the context of mimicalism.
When you’re creating a new word, would not you want to give a name your #?