List of "weird" vords

[Rafal]

Putting a big lot of null text into cipher actually happened in the past.

See for example Copiale cipher: You are not allowed to view links. Register or Login to view.
It is not a 1-for-1 substitution but rather a homphonic ciper. Each ciphertext character stands for a particular plaintext character, but several ciphertext characters may encode the same plaintext character. For example, all the unaccented Roman characters encode a space.
If you check it, these nulls make about 50% of the text.

There is also Ave Maria cipher which maybe doesn't have nulls but is very "bloated", single letters are coded by long full words.
You could add there some null words of course to make it more grammatical:
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For example, the word “Hello” is encoded as
Optimus dominus immortalis immortalis imperator