United Kingdom vs sweet Fanny Adams

United Kingdom and sweet Fanny Adams both are nouns.

Word	Noun	Adjective	Verb	Adverb
United Kingdom	Yes	No	No	No
sweet Fanny Adams	Yes	No	No	No

United Kingdom (noun)	sweet Fanny Adams (noun)
a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom	little or nothing at all