Not so sure that I've seen "cattywompus" in my studies of The Law and The Prophets.......

But do you find no merit in the idea that having *no* word for a concept inhibits the very cognition of the concept? Perhaps we recognize more clearly that we needed a word after we have made the word. Those who can recognize the need for the word are probably more adept at abstract thought, and the word itself then assists others, less erudite, to understand the concept.
Well, you are talking to a redneck so I am probably not the best example. Surely with a moniker like
@HoustonSam you are not immune to the concept that rednecks often use made-up words and colloquialisms to describe a concept distinctly where vocabulary is otherwise insufficient or laborious.
Hence my example of cattywompus, which may describe quite a few different concepts: Splayed, out-of-square, out of line, non-contiguous, and by analogy, nonconforming or unusual in a weird or unkind sense.
In fact, the concept can long lead the word or phrase: 'Because 'Merica' is something that anyone can grasp as a concept, and that concept was valid long before the slang phrase defined that sort of unquestioning patriotic fervor, especially with it's humorous twist.
Kant was famous, or perhaps notorious, for his use of distinct, almost perverse, definitions of words. Without his formulation of the "synthetic a priori" I question whether anyone would have ever even *thought* of the concept.
I think that unlikely. For two people that 'get it', the concept need not be described succinctly: 'Ya put that hoodig in the thingamajig and worry it up' means nothing really, without an understanding of a concept that remains undefined. Walking by some folks and catching that phrase would leave you unknowing of the process, because you don't know what they are talking about - But you probably know right off that 'hoodig' and 'thingamajig' are place holder words for something THEY understand, but cannot define explicitly... and you may know what 'worry em up' means too.
Somewhat the same is true in country navigation instructions... But I will relent, lest I become repetitious.