Is there a word for writing nonsense in a way to create the illusion of deeper meaning?

I was thinking about some late Beatles lyrics which were intentionally written to not make sense, but to create the illusion that there was hidden meaning to be discovered. This seems like the opposite of obfuscation, where you would take something meaningful and make it not make sense in order to hide the meaning.

Is there a word for this attempt at creating a false illusion of hidden meaning?

mumbo jumbo

senseless or pretentious language, usually designed to obscure an issue, confuse a listener, or the like.

From a David Berlinski lecture:

" ... some banal thoughts buried in mathematical mumbo jumbo. Now, personally, I have nothing against mathematical mumbo jubmo: it's my stock-in-trade! But at the same time, let me tell you, I can recognize a co-conspirator."

https://www.dictionary.com/browse/mumbo-jumbo?s=t