That's not how language works. Words and terms have meaning, you can't just make stuff up and say "languages evolve/everything is subjective/use whatever phrase you want whenever you want."
All words and phrases are made up. None of them have an “inherent concrete meaning”. Commonly-accepted deifnitions today may have been entirely foreign a few decades ago.
Words and phrases can have a de facto inherent meaning when they are in a language shared by the speaker and listener (including a shared knowledge domain).
When in spite of this shared language/domain situation, a phrase is gobbledygook, it is fair to say it has "no inherent concrete meaning".
So if you think all these things, why do you feel a need to convince us we're wrong? I mean, does your blarf just not embiggen the point yule's trying to make? I mean, depending on what you might think I instoll with a breem like 'your blarf'.
I do agree that it all glarps like slofting ar a six year old.