What's the plural form of post-irony? Here's the word you're looking for.
Answer
The noun post-irony can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be post-irony.
However, in more specific contexts, the plural form can also be post-ironies e.g. in reference to various types of post-ironies
or a collection of post-ironies.