As advertising blather becomes the nation's normal idiom, language becomes printed noise.
— George Will

Psychobabble is... a set of repetitive verbal formalities that kills off the very spontaneity, candor, and understanding it pretends to promote. It's an idiom that reduces psychological insight to a collection of standardized observations, that provides a frozen lexicon to deal with an infinite variety of problems.
Richard D. Rosen idioms quote

The test of a given phrase would be: Is it worthy to be immortal? To make a beeline for something. That's worthy of being immortal and is immortal in English idiom. I guess I'll split is not going to be immortal and is excludable, therefore excluded.
— Robert Fitzgerald

I try to use the Australian idiom to its maximum advantage.
— Paul Keating

A scrupulous writer, in every sentence that he writes, will ask himself at least four questions, thus: 1. What am I trying to say? 2. What words will express it? 3. What image or idiom will make it clearer? 4. Is this image fresh enough to have an effect?
— George Orwell