Meaning of the word "be neither fish nor fowl" in English

What does "be neither fish nor fowl" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

be neither fish nor fowl

US /bi niːðər fɪʃ nɔr faʊl/
UK /bi naɪðər fɪʃ nɔː faʊl/
"be neither fish nor fowl" picture

Idiom

to be difficult to categorize or identify; to not belong to any particular group or type

Example:
His new business venture seems to be neither fish nor fowl; it's not quite a restaurant, but not just a cafe either.
The new policy is so vague that it seems to be neither fish nor fowl, making it hard to implement.