idiom vs out of whack

idiom is a noun but out of whack is not a noun.

Word	Noun	Adjective	Verb	Adverb
idiom	Yes	No	No	No
out of whack	No	Yes	No	No

idiom (noun)	out of whack (noun)
the style of a particular artist or school or movement
the usage or vocabulary that is characteristic of a specific group of people
an expression whose meanings cannot be inferred from the meanings of the words that make it up
a manner of speaking that is natural to native speakers of a language

idiom (adjective)	out of whack (adjective)
	out of balance or out of adjustment