pile on poem

A poem that was the cumulative paraphrase of thousands of poems like it.

infallible test

In poetry, in which every line, every phrase, may pass the ordeal of deliberation and deliberate choice, it is possible, and barely possible, to attain that ultimatum which I have ventured to propose as the infallible test of a blameless style; namely: its untranslatableness in words of the same language without injury to the meaning.

—Samuel Taylor Coleridge, Biographia Literaria (1817), ch. 22

resists paraphrase

A poem that resists paraphrase at every turn.